When Rodents Rafted Across the Ocean

Ғылым және технология

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The best evidence we have suggests that, while Caviomorpha originated in South America, they came from ancestors in Africa, over 40 million years ago. So how did they get there?
This episode was written by Genevieve Perdue.
Thanks to Ceri Thomas for the Josephoartigasia monesi reconstruction. Check out more of Ceri's paleoart at / alphynix and nixillustration.com
Produced for PBS Digital Studios.
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References:
academic.oup.com/biolinnean/a...
link.springer.com/article/10....
www.ncbi.nlm.nih.gov/pubmed/2...
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rspb.royalsocietypublishing.or...
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onlinelibrary.wiley.com/doi/a...
www.nature.com/articles/26886
journals.plos.org/plosone/art...
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scinapse.io/papers/2167227626
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science.sciencemag.org/content...
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www.jstor.org/stable/2999827
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Lavocat, R. “La syste´matique des rongeurs hystricomorphes et la de´rive des continents.” Comptes Rendus de l'Académie des Sciences Series D 269 (1969).
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Merali, Z., and B.J. Skinner. Visualizing Earth Science (2009). Hoboken: John Wiley & Sons, Inc.
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academic.oup.com/jmammal/arti...
Mones, A., and J. Ojasti. “Hydrochoerus hydrochaeris.” Mammalian Species 264(1986).
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Morrison, M.L., Marcot, B.G., and R.W. Mannan. Wildlife-Habitat Relationships: Concepts and Applications, 3rd ed. (2006). Washington, D.C.: Island Press.
Nowak, R. M. Walker’s mammals of the world, 5th ed. (1991). Baltimore: Johns Hopkins University Press.
advances.sciencemag.org/conten...
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scinapse.io/papers/184792926
Patton, J. L., Pardiñas, U. F. J., and G. D’Elía. Mammals of South America, Vol. 2, Rodents (2015). Chicago: The University of Chicago Press.
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Scotese, C.R. “A Continental Drift Flipbook.” The Journal of Geology 112.6 (2004).
Simpson, G.G. 1940. “Mammals and land bridges.” Journal of the Washington Academy of Sciences 30 (1940).
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Пікірлер: 1 200

  • @TricksterModeEngaged
    @TricksterModeEngaged5 жыл бұрын

    Showing my guinea pigs this video so they can be proud of their seafaring ancestors

  • @elizabethhutt7743

    @elizabethhutt7743

    5 жыл бұрын

    CaityCupcakes This is the most wonderful thing I have read on the Internet all day.

  • @scottmantooth8785

    @scottmantooth8785

    5 жыл бұрын

    look for a book called Great Big Guinea Pigs by Susan L. Roth...a great book to read out loud to guinea pigs and a lot of fun to read to yourself as well... (and yes i have the book)

  • @diamondsngunns88

    @diamondsngunns88

    5 жыл бұрын

    🤗🤗🤗

  • @tomservo5007

    @tomservo5007

    5 жыл бұрын

    I ate guinea pig in Ecuador.... it was actually the best tasting chicken I ever had.

  • @jackkelly324

    @jackkelly324

    5 жыл бұрын

    @@tomservo5007oh

  • @polyrhythmz2620
    @polyrhythmz26205 жыл бұрын

    Pikachu used Surf

  • @itstoughtobehumaninaworldv1872

    @itstoughtobehumaninaworldv1872

    5 жыл бұрын

    I think it is more accurate to use Bidoof.

  • @vantaplat7411

    @vantaplat7411

    5 жыл бұрын

    @@itstoughtobehumaninaworldv1872 pikachu looks more similar and can learn surf

  • @bobbiusshadow6985

    @bobbiusshadow6985

    5 жыл бұрын

    Yup, Pikachus are descendants of those sea faring rodents

  • @KasaiBuru

    @KasaiBuru

    4 жыл бұрын

    @@bobbiusshadow6985 Alolan Raichu

  • @bbear1928

    @bbear1928

    4 жыл бұрын

    It's supereffective!

  • @RubenKelevra
    @RubenKelevra4 жыл бұрын

    Columbus: I've crossed the Atlantic Ocean and discovered America! Guinea Pig: Hold my running wheel

  • @Fireholder1

    @Fireholder1

    3 жыл бұрын

    Water bottle.

  • @Im-Not-a-Dog

    @Im-Not-a-Dog

    3 жыл бұрын

    "Hold my pumpkin seed."

  • @giovannirafael5351

    @giovannirafael5351

    3 жыл бұрын

    Not Columbus. Gross.

  • @jchesterphotography
    @jchesterphotography5 жыл бұрын

    Definitely want to know more about the horse sized rodents???!!!

  • @Cora.T

    @Cora.T

    5 жыл бұрын

    I did some research ( because as a horse girl, horse size doesn't tell me much because they can weigh between a 100 up to 2100 kg ) the sources vary, it's weight could be 350, 800, 1000 and even 1500 kg depending on the source. Sources seem to be a little more consistent when it comes to dimensions, 2,7 or 3 m from nose to tail and 1.5 m in height ( which makes me wonder why there is this huge difference in weight estimates, because I can't believe it to be obese ) however everything is an estimate as the only thing that has been found is a skull ( of 53 cm ) and an incisor ( of more than 30 cm ) which has been found in 1987 by an amateur paleontologist, and it's finding has been published in 2008. So so far there isn't much to report on, but I bet when they know more eons will make a video. Also here is a link with some more info, www.nationalgeographic.com/animals/2008/01/south-america-large-rodent-discovery-animals/

  • @jchesterphotography

    @jchesterphotography

    5 жыл бұрын

    @@Cora.T This is awesome! Thank you for sharing this information, hopefully more examples turn up soon!

  • @jeremybyington

    @jeremybyington

    5 жыл бұрын

    I want to know what they ate. Some rodents will chew on anything and I could iimagine them eating other animals given the opportunity.

  • @lastmanstanding5423

    @lastmanstanding5423

    5 жыл бұрын

    there's an episode of South Park that tells you all about it...

  • @Cora.T

    @Cora.T

    5 жыл бұрын

    @@jchesterphotography no problemo 😃, yeah me to

  • @UnintentionalSubmarine
    @UnintentionalSubmarine5 жыл бұрын

    This channel is just magic. Not the first time I have jumped into a video with a thought of "this isn't exactly my area of interest" only to be thoroughly engaged, hence why I do it every time.

  • @danielbailey8001

    @danielbailey8001

    5 жыл бұрын

    Hear, hear!!

  • @demetriusmiddleton1246

    @demetriusmiddleton1246

    4 жыл бұрын

    Exactly! I just made a similar comment, that this is quickly becoming my favorite KZread channel!

  • @brentgreeff1115

    @brentgreeff1115

    4 жыл бұрын

    video was interesting because it was secretly about Atlantis.

  • @tobiasnunya4034

    @tobiasnunya4034

    4 күн бұрын

    ​@@brentgreeff1115 Ratlantis

  • @damonhicks969
    @damonhicks9695 жыл бұрын

    I could see a storm off Africa ripping a tree over into the ocean that a few families of rats took shelter from the storm and got carried out to sea. They could eat the remaining leaves of the tree that the storm didn't rip off to get the residual moisture for the week or so journey. When they made landfall in South America if there were few predators they would breed quickly and fill almost every niche.

  • @ashleighcalloway886

    @ashleighcalloway886

    5 жыл бұрын

    Great theory

  • @abhiprakash74999

    @abhiprakash74999

    4 жыл бұрын

    There could have been rains Midway in the ocean too. Shallow depressions in the leaves or wood or absorbtion by wood could have led to stores of fresh water

  • @vituperation

    @vituperation

    3 жыл бұрын

    Imagine more than one tree where they're standing upright with their roots tangled together in one giant, buoyant mass. I think it's conceivable that this raft could stay largely intact for a week or so out in the ocean and sustain life for that long considering that its hitchhikers could derive enough water from their food to survive.

  • @jeanzlarg6686

    @jeanzlarg6686

    3 жыл бұрын

    Yeah, until we discover that these landmass were actually still connected in ways we haven't been able to grasp yet. For example they show the map of africa moving as a whole but skeletons of whales have been found in the sahara desert so ... it actually changed quite a lot and this mainstream theory of drifting continents is valid until we can do more advanced underwater researches.

  • @nicerock5506

    @nicerock5506

    2 жыл бұрын

    @@jeanzlarg6686 we’re well aware of continental drift. we have whale skeletons since whales evolved in the sea between india/pakistán and africa

  • @c.h.1839
    @c.h.18395 жыл бұрын

    Rats 40mil years ago: Hey bro wanna go swim ? Rat: sure dude 40million years later:

  • @dermusikman
    @dermusikman5 жыл бұрын

    "There are no cats in America And the streets are lined with cheese"

  • @lolboi2996

    @lolboi2996

    4 жыл бұрын

    Reference?

  • @CheatsythePimp2

    @CheatsythePimp2

    4 жыл бұрын

    An American Tail

  • @kennethultimate02

    @kennethultimate02

    4 жыл бұрын

    That's plausible

  • @pennavedc

    @pennavedc

    4 жыл бұрын

    Puma and Jaguars : "go home. You're drunk."

  • @devinsamuel3612

    @devinsamuel3612

    4 жыл бұрын

    @@pennavedc Rodents made it to South America before felines! But there were other predators there already so moot point from their perspective

  • @daddyleon
    @daddyleon5 жыл бұрын

    A great example of "write it in a novel and people think it's unrealistic" type of things. Nature is damned fascinating man!

  • @fang609
    @fang6095 жыл бұрын

    Capybaras are just the kindest most adorable rodents ever. Great baby sitters as well but unfortunately everyone in the place the live in the same places as Jaguars, Anacondas and Caimans.

  • @nicolasreinaldet732

    @nicolasreinaldet732

    5 жыл бұрын

    Dude capybaras are thuff. Some areas of south america are now seing a overpopulation of they becase the only anima that can hunt one frequently is a jaguar, and they are in danger.

  • @jupiter1390

    @jupiter1390

    5 жыл бұрын

    Well they're lucky they don't live in Eurasia continent

  • @chadoftoons

    @chadoftoons

    5 жыл бұрын

    Sell em as pets if they are overpopulating im sure someone would take a couple

  • @matheuscamilo9055

    @matheuscamilo9055

    5 жыл бұрын

    I'm actually from Brazil. Here they might live without natural predators in some low density urban/rural areas being taken care by the townsfolk as cultural heritage and part of the local culture and identity

  • @nicolasreinaldet732

    @nicolasreinaldet732

    5 жыл бұрын

    @@chadoftoons Imagine that news. Capybara crisi in south america, thousands or capybaras are going to the U.S. in the search of a better life. But local rodents fear they will take theyr jobs as dam builders and stick things.

  • @ellagrant6190
    @ellagrant61905 жыл бұрын

    This sounds like it could make an epic animated movie in the vein of Ice Age. You could reference the new world primates doing the same thing in response. "If those damn rodents can do it, we can do it better!" Throw in some animal pirates, social drama on the raft etc.

  • @BonaparteBardithion

    @BonaparteBardithion

    5 жыл бұрын

    Give the animals names that spoof Viking and Italian explorers. Or was it mostly the Spanish that charted South America? Anyway, continental discovery spoof.

  • @jesso.4971

    @jesso.4971

    5 жыл бұрын

    You have your pitch to DreamWorks ready!

  • @Kapnohuxi_folium

    @Kapnohuxi_folium

    Жыл бұрын

    Isn't this just continental drift but on plants and with rodents/monkeys?

  • @t.miranda176

    @t.miranda176

    Жыл бұрын

    Don’t let Disney hear about this. Pitch it to Laika! Stop motion animation would work perfectly for a story like this.

  • @jenniferhouse1939

    @jenniferhouse1939

    Жыл бұрын

    W a pole shift as one of the climate disaster doom

  • @andrewk9267
    @andrewk92675 жыл бұрын

    Can you do a video about Pronghorns and other extinct Antilocapridae? I never looked into them until recently, but it blows my mind to learn that 1) they are the fastest animal in the Western hemisphere because they adapted to outrun the extinct American cheetah, leaving them with a phantom adaptation, and 2) that their closest living relatives are giraffes and they only look like antelope from convergently evolving to fill the American prairie niche. Please!

  • @crazycatlady39

    @crazycatlady39

    5 жыл бұрын

    Their adaptation still works really well because the rest of the predators were slower. So it still helps because they can basically outrun everything. Meaning predators have to really sneak up on them to even get a good chance.

  • @Bacteriophagebs
    @Bacteriophagebs5 жыл бұрын

    I wasn't aware that anyone considered this to be impossible, as many Pacific islands could only have been colonized by terrestrial species via rafting. Hawaii, for example, is 2100 km from the nearest land mass, Midway, a coral atoll where no terrestrial species could have developed, and over 3000 km from the nearest continental land mass. Humans only arrived in Hawaii about 2000 years ago, and the diversity of Hawaii's terrestrial species shows that the vast majority of them had to have arrived long, long before that. Hawaii could ONLY have gotten terrestrial life via rafting, and the *current* distance between South America and Africa is less than the distance from Hawaii to anything habitable.

  • @everettduncan7543

    @everettduncan7543

    4 жыл бұрын

    That's probably how some of the terrestrial inverts of the subantarctic got there too; some snail in the Falklands could've used the Furious Fifties or Roaring Forties to get to the Kerguelen islands and later used birds to spread to the Prince Edward, Amsterdam, Heard and Crozet chains.

  • @Bacteriophagebs

    @Bacteriophagebs

    4 жыл бұрын

    @Cody Last Name You think a bird carried an animal 3000 km, then dropped it and it was still healthy enough to be alive? Albatrosses travel about 300 km per day, and they're the absolute peak of evolution for long-distance flight. You're saying that a bird grabbed prey and flew for at least 10 days without eating it, and the prey was healthy enough to reproduce after 10 days without food or water. Not to mention that this bird would have to be one adapted for long-distance ocean flight, but still hunt on land and be able to carry prey, something aquatic birds can't do because of their webbed feet.

  • @vituperation

    @vituperation

    3 жыл бұрын

    I dunno about all that. Iwould take a look at this article on the origins of Hawaiian life. www.bbc.com/earth/story/20150625-islands-where-evolution-ran-riot

  • @Weirdoid
    @Weirdoid5 жыл бұрын

    The island hopping rafting makes a lot more sense. I always wondered how they could cross without food and water, not be sick and weak, avoid predation, and find others of their kind to mate with. It was like chance upon chance falling in their favor.

  • @AvailableUsernameTed
    @AvailableUsernameTed5 жыл бұрын

    This had me looking up why beavers are in the Americas and in Europe. Turns out they are two separate specious that are only superficially similar.

  • @SKy_the_Thunder

    @SKy_the_Thunder

    5 жыл бұрын

    Very closely related species though.

  • @scottmantooth8785

    @scottmantooth8785

    5 жыл бұрын

    for some reason the scene of the French Taunters from Monty Python and the Holy Grail comes to mind...but then i have a strange sort of brain that goes off on wild tangents like that and leaves me to wonder what's going to happen next... oh look! a squirrel!!!! gotta catch it.... *runs off to chase squirrels in the rain*

  • @brq267

    @brq267

    2 жыл бұрын

    Different species, same genus

  • @timothyjohnson6143
    @timothyjohnson61435 жыл бұрын

    I saw a cartoon about this as a kid. It was called "An American Tail."

  • @hydro_pyro

    @hydro_pyro

    5 жыл бұрын

    That’s not what An American Tale is about

  • @timothyjohnson6143

    @timothyjohnson6143

    5 жыл бұрын

    Haeleigh Yazitekin A rodent comes to America. Same difference lol.

  • @hydro_pyro

    @hydro_pyro

    5 жыл бұрын

    Except one is prehistoric and the other came on a boat to the United States.

  • @timothyjohnson6143

    @timothyjohnson6143

    5 жыл бұрын

    Haeleigh Yazitekin Ehh, Tomato Tomato...

  • @jonathanryan9946

    @jonathanryan9946

    5 жыл бұрын

    Haeleigh Yazitekin I'm pretty sure it was just a modern day retelling of the classic story told in this video

  • @dimman77
    @dimman775 жыл бұрын

    "These are fish." - some Spanish priest.

  • @sovietbot6708

    @sovietbot6708

    4 жыл бұрын

    *Estos son peces

  • @theblackandwhitev.2604

    @theblackandwhitev.2604

    3 жыл бұрын

    or portuguese

  • @jadedmist

    @jadedmist

    3 жыл бұрын

    Thats not wrong though, during the middle ages they would partake in Lent. During this time the only meat they could have was fish so basically everything was a fish including Puffins and some geese. If it touches water its a fish.

  • @Im-Not-a-Dog

    @Im-Not-a-Dog

    3 жыл бұрын

    In the late 1800's, there was a court case here in the US where it was legally determined that Whales and Dolphins are, dispite of their similarities to mammals, in fact fish. The case was mostly due to taxation of fish as opposed to "sea mammals" such as Otters, Manatiees, and Seals, and becuase fish were taxed less the fishing industry back the "whales are fish" side. Plus there was a lot of religious rhetoric used in the argument thay wouldn't stand up in a modern court. The point of this is that there is actually a legal precedent for considering oceanic mammals as fish.

  • @andreluisdossantos1375
    @andreluisdossantos13755 жыл бұрын

    Hahahha. So cute to hear Kellie saying Capybara! Great Channel. In Brazil we call it capiVara (y and i sounds the same) and it is a very very common animal. Even in big metropolis you can find them. Very resilient. It's amazing to learn something about its origins...

  • @belizeguy
    @belizeguy5 жыл бұрын

    I have read that the raft method helped put tortoises that would become Galapagos Tortoises and Iguanas on the Galapagos so long ago .

  • @angeliparraguirre7329

    @angeliparraguirre7329

    5 жыл бұрын

    Ancestors if today's Lemurs migrating to madagascar is another good example that's has a lot of documented evidence

  • @IWasaTeenageTeenWolf

    @IWasaTeenageTeenWolf

    5 жыл бұрын

    Galapagos tortoises are theorized to gave evolved from sea turtles who traveled to the islands and never left. If so, then they were probably "blown" off course, like the finches.

  • @dnwr5224
    @dnwr52245 жыл бұрын

    I hope capybaras know not to give rides to any scorpions

  • @EricWeberFilm

    @EricWeberFilm

    5 жыл бұрын

    'I can't help it', the scorpion said. 'It's my nature'

  • @1slayerpikmin1

    @1slayerpikmin1

    5 жыл бұрын

    It's free real estate

  • @craigkdillon

    @craigkdillon

    5 жыл бұрын

    @@EricWeberFilm That explains Trump's behavior, too.

  • @craigkdillon

    @craigkdillon

    5 жыл бұрын

    @@EricWeberFilm Although, I like scorpions more.

  • @genebijou3772

    @genebijou3772

    5 жыл бұрын

    Family Guy?

  • @fang609
    @fang6095 жыл бұрын

    Ahoy matey's. Set sail for South America.

  • @graphite2786

    @graphite2786

    5 жыл бұрын

    Aye aye captain Ratty

  • @batum8876

    @batum8876

    5 жыл бұрын

    Fang zes d

  • @RiggingDoctor

    @RiggingDoctor

    5 жыл бұрын

    I’ll let you know if I see any of them when we are sailing back across the Atlantic to come home!

  • @jimkid1392

    @jimkid1392

    4 жыл бұрын

    PiRats. Arrr.

  • @kanrup5199

    @kanrup5199

    4 жыл бұрын

    @@jimkid1392 pie-rats.

  • @T33K3SS3LCH3N
    @T33K3SS3LCH3N3 жыл бұрын

    If we have observed such raft migrations in the modern era, it seems almost certain that it must have happened quite a lot over thousands, let alone millions of years.

  • @hernanhenriquez6778
    @hernanhenriquez67785 жыл бұрын

    I'm from Argentina the capibara are really cool animals

  • @JimRiven

    @JimRiven

    5 жыл бұрын

    But are they delicious?

  • @hernanhenriquez6778

    @hernanhenriquez6778

    5 жыл бұрын

    @@JimRiven haha yeah actually they are 🍗

  • @nicolasreinaldet732

    @nicolasreinaldet732

    5 жыл бұрын

    @@hernanhenriquez6778 Argentina an Brazil should stop to sell beaf to sell capybara meat instead.

  • @gibranhenriquedesouza2843

    @gibranhenriquedesouza2843

    5 жыл бұрын

    I am brazilian and once I tried to eat capybara meat, but was very expensive. The restaurant told us the cook certified meat from farms, they can't hunt the wild capybaras.

  • @victorfergn

    @victorfergn

    5 жыл бұрын

    +Hernan Henriquez Argentina is basically the country of rats

  • @keithdurant4570
    @keithdurant45705 жыл бұрын

    "Once you eliminate the impossible, whatever is left, no matter how improbable, must be the truth." Sir Arthur Conan Doyle

  • @Bill_Garthright

    @Bill_Garthright

    5 жыл бұрын

    Or something you haven't thought about yet (which is far more likely, in most cases).

  • @flamencoprof

    @flamencoprof

    5 жыл бұрын

    Quotes should have attribution.

  • @keithdurant4570

    @keithdurant4570

    5 жыл бұрын

    @@flamencoprof I couldn't remember who said it or if that was the exact phrase. Laziness is a disease, so I looked it up. Sir Arthur Conan Doyle and I will edit the original statement. Thank you for reminding me.

  • @flamencoprof

    @flamencoprof

    5 жыл бұрын

    @@keithdurant4570 It was an observation rather than a command, but glad to see someone who can respond in a civilised way. I was just thinking of all those young people who wouldn't know about it. :-)

  • @jeanzlarg6686

    @jeanzlarg6686

    3 жыл бұрын

    here is the thing, scientists tend to eliminate options out of ideology. The drifting contienents theory is the mainstream one, therefore everybody bites to it and every researches has to stick with it. That eliminates quite a lot of options... and discoveries. Did you know whales once swam in the sahara ? and not only in egypt but also in Mauritania and in chilean desert. The sea level went up and down, and so did some landmass that are now underwater. It's hard to prove but it will be one day and people will laugh at this kind of documentary.

  • @IamAvni
    @IamAvni5 жыл бұрын

    Thank you guys from the PBS Eons channel. Learning has never been more fun. I feel so lucky to be alive in this great time where information and learning is not exclusively for people who can afford university!

  • @calimerohnir3311
    @calimerohnir33115 жыл бұрын

    capybaras are friend shaped

  • @cricketuhm

    @cricketuhm

    3 жыл бұрын

    yeah❤

  • @gapetheapegod7976

    @gapetheapegod7976

    3 жыл бұрын

    yeah❤

  • @BentleyS6336

    @BentleyS6336

    3 жыл бұрын

    yeah❤️

  • @L_mattox

    @L_mattox

    3 жыл бұрын

    Now I'm imagining a family of Capybaras arriving in South America, off their tree raft, and just hugging any animal that doesn't try to attack them.

  • @pedrojioia

    @pedrojioia

    3 жыл бұрын

    a capybara killed a dog near my home, they are generally friend but dont get mistaken

  • @RogueTalent
    @RogueTalent4 жыл бұрын

    “What about the R.O.U.S.’s?” “Rodents of Unusual Size? I don’t think they exist.” 😱😱😱

  • @davidrosner6267
    @davidrosner62675 жыл бұрын

    So rodents sailed the oceans blue and discovered the Americas more than 40 million years ago? Take that Christopher Columbus! 😂

  • @kekeke8988

    @kekeke8988

    4 жыл бұрын

    @OLD BIRD CHOZO Nope.

  • @pphyjynx8217

    @pphyjynx8217

    4 жыл бұрын

    it's not like columbus was even the first european to discover the americas

  • @ukdrilllyrics2624

    @ukdrilllyrics2624

    4 жыл бұрын

    * take that Vikings *

  • @heinuchung8680

    @heinuchung8680

    3 жыл бұрын

    David Rosner they were escaping king Julian ;) they didn’t want to move it move it anymore

  • @giovannirafael5351

    @giovannirafael5351

    3 жыл бұрын

    Cristopher Columbus didn't "discover" anything. There were literally million of people already living here.

  • @sapphirII
    @sapphirII5 жыл бұрын

    I'm always bummed when there's no Eons episodes during a week... I'd like to know how bats evolved flight

  • @KellyClowers

    @KellyClowers

    3 жыл бұрын

    Biologists would love to know too! Unfortunately still very little is known about it, and last I heard we still don't have any transitional bat fossils, nor any clear pre-bat ancestors/relatives. Bats just pop up in the fossil record (I think about 50 mya) as clearly powered-flight capable animals. Though, I heard that genetic studies of bat lineage relationships suggest multiple independent origins of flight in bats, which is just wild

  • @sapphirII

    @sapphirII

    3 жыл бұрын

    @@KellyClowers They ended up making an episode covering bats, even if there's a lack of fossils for the bat's transition.

  • @AlexAzureOtaku
    @AlexAzureOtaku5 жыл бұрын

    The video was informative and awesome and but all through it, i couldn't stop admiring how metal this amazing woman seems with the braid, the tattoo and the sweet sweet intellectual voice.

  • @scottmantooth8785

    @scottmantooth8785

    5 жыл бұрын

    the sleeve tatt is also rather impressive

  • @rippspeck

    @rippspeck

    5 жыл бұрын

    Sleeve tattoos are this decade's tramp stamp. Not saying this lady is a tramp, I'm just pretty damn sure we will look back at this in disgust some day.

  • @kainebishop3970

    @kainebishop3970

    5 жыл бұрын

    I think she isn't attractive at all.

  • @AlexAzureOtaku

    @AlexAzureOtaku

    5 жыл бұрын

    To each his own~

  • @VeteranVandal

    @VeteranVandal

    5 жыл бұрын

    You are probably even more metal I suppose!

  • @Zootycoonman223
    @Zootycoonman2235 жыл бұрын

    Just some ideas: 1) The Evolution of the Theory: a metacommentary on the development of the theory, starting with Grecophilosophers into transmutation and upward, giving people a full understanding of how scientists are where we are today 2) ecosystems through the ages: talk about how the Pleistocene shaped many ecosystems into what we know today 3) the mysterious radiation of Amazonian birds, thought at one time to be the result of fragmentation during the Pleistocene but now it’s uncertain the Amazon rainforest was actually all that fragmented 4) any number more cladistic videos: cervids, bovids, felids, you already did equids, etc. 5) the evolutionary science of selective breeding and sire affect, get people to watch because of man’s best friend and the ‘one true master of us all’ (cats) 6) Talk about the de-ossification of Myxini, that could be fun, and what actually makes a vertebrate and an invertebrate... in fact... 7) vertebrate Evolution and the anatomical indicators we use to identify this evolution Just some ideas to throw out. As always superb work! :)

  • @gallifreyandefense

    @gallifreyandefense

    5 жыл бұрын

    great ideas!

  • @nayruofthezoras1458
    @nayruofthezoras14585 жыл бұрын

    Fascinating! I just learn of the ancestral origins of my guinea pigs (love them with all my heart) and their wild relatives. Its very amazing how much diversity and unique wonders the animal kingdom truly display, and they triumph the odds to became a successful family of creatures. The poor critters lost at sea must have had it rough with little food or safe drinking water available to them, but they were survivors, and fate had been waiting for them in the distant land that will become their new forever home. I am grateful for their journey to the new world, because now I have two wonderful guinea pigs that I cherish. :) I love nature (even if its frighteningly brutal sometimes. But that's life.)

  • @cadenrolland5250
    @cadenrolland52505 жыл бұрын

    The life of the Earth I'd like to see a video on all of the different "lives" that the Earth has lived. The Earth has been covered in lava, covered nearly in ice, really warm, a series of ice ages, had one continent, had no continents, had no life for a very long time, had only bugs living on its land masses, had way more O2 in its atmosphere, and may have even been hit by a moon! (the Earth may have even had rings around it at one point!!!) These weren't just quick passing moments but millions of years! The Earth is an old lady with a trillion stories to tell. Can you give us a brief history on that to bring it back to life for us?

  • @thomassaldana2465

    @thomassaldana2465

    5 жыл бұрын

    I'd like to see that. It'd probably need to be a full 3-hour playlist, rather than just a single 5-minute video. *goes to grab popcorn*

  • @cadenrolland5250

    @cadenrolland5250

    5 жыл бұрын

    @@thomassaldana2465 It could be as long as they wanted it to be, that's for sure. Last time that story was told it took 4.5 billion years.

  • @steveblakley5285

    @steveblakley5285

    5 жыл бұрын

    @@cadenrolland5250 im down to see that count me in

  • @davidrosner6267

    @davidrosner6267

    5 жыл бұрын

    I'd also like to see PBS Eons due a brief 4.5 billion year timeline of all the geological epochs in the Earth's history! That would really help put things in perspective!

  • @Tinyvalkyrie410

    @Tinyvalkyrie410

    5 жыл бұрын

    Caden Rolland I mean, that’s this whole channel. Like that’s it’s purpose. If you want videos that cover larger swaths of natural history go back to the earlier videos on this channel, like the one that gives a definition of eons and the one that was about plate tectonics. These more specifically focused videos are being made more frequently on this channel because the big thematic ones have already been done. They even have a playlist for those overview videos I believe. Enjoy!

  • @AdrianoFiorenza
    @AdrianoFiorenza5 жыл бұрын

    Love Eons too much! please explore more about Last Universal Ancestor and scientific attempts to create life from inorganic matter!

  • @tinhornname4117
    @tinhornname41175 жыл бұрын

    Rat bois go across ocean

  • @usuarionormal6778

    @usuarionormal6778

    5 жыл бұрын

    me and the bois going in a vacation

  • @justabotatthings.1039

    @justabotatthings.1039

    3 жыл бұрын

    ratatouille on another level.

  • @travelers8607
    @travelers86075 жыл бұрын

    "What do you want to learn about?" Cave Hyenas! :D

  • @turmunhkganba1705
    @turmunhkganba17055 жыл бұрын

    Could you cover the evolution of blood?

  • @michaelflores9220

    @michaelflores9220

    5 жыл бұрын

    Arthropods don't even need veins. I forget how their blood works. There are arthropods and mollusks that use copper instead of iron in their blood.

  • @godofthisshit

    @godofthisshit

    5 жыл бұрын

    Seem like they have now.

  • @russelllong9924
    @russelllong99245 жыл бұрын

    Truly enjoy listening to this channel

  • @laurasweightlossjourney
    @laurasweightlossjourney5 жыл бұрын

    As a guinea pig owner, I could see my guinea pig just chilling as he drifted off in the ocean.

  • @JMBen
    @JMBen3 жыл бұрын

    I have a perfect Chinchilla. Her ancestors braved the ocean before mine were walking on two legs. Now she rides my shoulders

  • @AvelierPlays
    @AvelierPlays5 жыл бұрын

    One of the best YT channels out there, always a joy to watch new episodes

  • @joachimmacdonald2702
    @joachimmacdonald27025 жыл бұрын

    7:52 I’m sorry who...?

  • @shockingred2626

    @shockingred2626

    4 жыл бұрын

    Joachim Macdonald I noticed too

  • @celtgunn9775
    @celtgunn97755 жыл бұрын

    I love EOS! I wish that you guys were able to do more than one video a week. I enjoy learning from this channel so much. Thank you EOS! 😍

  • @jorgegar1993
    @jorgegar19935 жыл бұрын

    Great video, as always! You guys should do one on the origin of the Giraffoidea and all of the giraffe relatives that are extinct but looked super cool and odd. Other suggestions I have that I think would be great: evolutionary history of the Hemichordata, a deeper look at the Pterosauria (the mechanics of flight for members of this clade and the diversity of it), and the Rhynchocephalia and how the tuatara has managed to outlive all of its relatives! Keep up the good work!

  • @smolboi9695
    @smolboi96954 жыл бұрын

    Rodents on a naturally made raft when they see South America Rodents: Well shiver me timbers lads we have a new land to colonise

  • @captainstroon1555
    @captainstroon15555 жыл бұрын

    Maybe the Capybara ancestors built dams like beavers and some of those got washed into and across the atlantic ocean. With Pre-capybaras on them.

  • @deepakmnair4165
    @deepakmnair41653 жыл бұрын

    7:52 - One of the most interesting human names I've ever heard. Very interesting indeed.

  • @revolutionarycomrade
    @revolutionarycomrade5 жыл бұрын

    Has anyone told you that youre the best host on this channel? They should. all the time.

  • @azdgariarada
    @azdgariarada5 жыл бұрын

    I would love it if you guys did an episode on various dating methodologies. I'm not sure but I think carbon dating can't be used to date things on time scales of millions of years? So I'd love to know how the clay (and hence teeth) was dated to 41 million years. Also, the concept of genetic dating is very interesting. I'm sure there are even more techniques that allow scientists to piece together the ages of various fossils/rocks/etc. It would make a great video.

  • @WastedYear1
    @WastedYear15 жыл бұрын

    This is by far my favorite channel on youtube

  • @ramuk1933
    @ramuk19332 жыл бұрын

    That makes me wonder how many creatures didn't make the journey... Imagine the relief those widdle wodents would have felt upon arrival!

  • @davidsbwana
    @davidsbwana5 жыл бұрын

    I get so excited whenever you guys post a new video. I love this channel!

  • @Darkanight
    @Darkanight5 жыл бұрын

    I really like the video but I wonder how hard it was for her not to laugh at 7:52

  • @sarai637
    @sarai6375 жыл бұрын

    Amazing! Interesting as always, thank you PBS!

  • @johnwatson3948
    @johnwatson39485 жыл бұрын

    I don’t see why anyone would doubt rafting as an almost certain explanation - as noted we see it happening now within our own short timeline and back then we’re talking hundreds of thousands of years.

  • @ThiagoOliveira-bc1gv
    @ThiagoOliveira-bc1gv5 жыл бұрын

    Hey, I'm a subscriber from Brazil and I think I watched almost all videos. I'd like so much to see a video about the evolution of the sireneans. Your work is amazing!!

  • @sansone9651
    @sansone96515 жыл бұрын

    I want to open a copy-service and call: -CopyBara-

  • @stefanosassuoli2236

    @stefanosassuoli2236

    5 жыл бұрын

    San Sone ahahahahahahahahaha

  • @johannageisel5390

    @johannageisel5390

    5 жыл бұрын

    If you serve beer and cocktails there too, you can call it CopyBarA.

  • @lmeza1983

    @lmeza1983

    5 жыл бұрын

    bara (slang for barato) = cheap (spanish) copybara = cheap copying (stationer's shop)

  • @gamermthegreat8229
    @gamermthegreat82295 жыл бұрын

    I LOVE THIS CHANNEL!!!

  • @Avocadomolotov
    @Avocadomolotov5 жыл бұрын

    thanks for the map!! i love when you guys do that!

  • @yannis8354
    @yannis83545 жыл бұрын

    From Guadeloupe....rare to be mentioned is this kind of videos !!!! Little things that makes you happy :)

  • @Sean_Lightning_OBrien
    @Sean_Lightning_OBrien5 жыл бұрын

    You should make a video about the unique birds in New Zealand 👍

  • @vault-tecrep8565

    @vault-tecrep8565

    5 жыл бұрын

    @Third time Lucky Well hello there, vaultboy!

  • @flamencoprof

    @flamencoprof

    5 жыл бұрын

    Seconded.

  • @KittyBoom360
    @KittyBoom3605 жыл бұрын

    Maybe there were even rafting rodents evolved to survive floods, who then got carried away... Rodents today are known for drastically changing their homes, like us, sometimes building dams, sometimes eroding river beds, so why not floating homes?

  • @alansolocinski5172
    @alansolocinski51722 жыл бұрын

    Great job on the graphics and especially on the presentation!!!

  • @obergfamily9049
    @obergfamily90492 жыл бұрын

    Capybaras are probably so chill because their ancestors were calm enough to not freak out and drown while being taken across the Atlantic Ocean by Lady Luck on a raft of lawn clippings and turds.

  • @jeremybasset9041
    @jeremybasset90415 жыл бұрын

    whoa whoa whoa 7:50 what is his name?? hehehehe

  • @SophiaAstatine

    @SophiaAstatine

    5 жыл бұрын

    I had to stop and enable subtitles too for a moment xD

  • @VioletWhirlwind

    @VioletWhirlwind

    4 жыл бұрын

    What an unfortunate middle name! XDXD (Unless, you know...he was into that sort of thing...I'm not one to judge. :P)

  • @nayderdabigfatgator1842
    @nayderdabigfatgator18422 жыл бұрын

    Ok they pulled up

  • @nab-rk4ob
    @nab-rk4ob5 жыл бұрын

    This was one of the most fascinating episodes to date and has opened my mind to new possibilities regarding animal and people group migration.

  • @demetriusmiddleton1246
    @demetriusmiddleton12464 жыл бұрын

    This is quickly becoming my favourite KZread channel!

  • @olib1239
    @olib12395 жыл бұрын

    7:52 what a name

  • @Vynzent
    @Vynzent5 жыл бұрын

    I would love to just own a huge plot of land with a lake, and have some of these guys living within the fencing of my property. Just chillin' there.

  • @MichaelHassemer
    @MichaelHassemer4 жыл бұрын

    Those hand-moves are really nice. A language in itself.

  • @tinamclaughlin1991
    @tinamclaughlin19915 жыл бұрын

    Love the info! More about the ridges on South Atlantic please!

  • @CloudsGirl7
    @CloudsGirl75 жыл бұрын

    Continents break up, and they split the kids among them. (...Wow, that was so bad, I don't even hear crickets...)

  • @ginnyjollykidd
    @ginnyjollykidd5 жыл бұрын

    Tell me about brachiopods. One of my favorite fossils!

  • @duaneferguson8349
    @duaneferguson83495 жыл бұрын

    This series is fascinating. It would be great if you could make a video covering the evolution and migration of marsupials. Thanks.

  • @johannageisel5390
    @johannageisel53905 жыл бұрын

    I'm envious of that lady's hair. Her braid looks really nice.

  • @gamerghxst
    @gamerghxst5 жыл бұрын

    I would love to know how Creatures survived the Cretaceous extinction to live on today yet not one dinosaur besides bird species. What is known on that subject?

  • @gamerghxst

    @gamerghxst

    5 жыл бұрын

    @Dan Ryan but crocodilians... Turtles... That prehistoric fish... What constituted one surviving and not the other especially in so many different ecosystems? The size point does make sense but crocodilians were huge before and after the extinction... I just would like to think there is more to it then small creatures survived but maybe you are right.

  • @Drakowyn

    @Drakowyn

    5 жыл бұрын

    I think in some cases luck was also a factor. It wasn't like birds, crocodiles, mammals, snakes, etc were unaffected. The majority of them also died but not enough to make them completely extinct. Burrowing could've increased the chance of survival, animals that could live on dead/decaying matter also had a big advantage as did animals that didn't need a lot of food (by being either small, cold blooded or both).

  • @Dragrath1

    @Dragrath1

    5 жыл бұрын

    One likely factor according to research is diet. Metabolically active animals such as Dinosaurs Pterosaurs and Mammals were all hit especially hard however the surviving groups in addition to their small size share a lot of physical characteristics with seed eating and or Cashing animals such as dentition in surviving mammals and toothless beaks adapted for eating seeds in the surviving lineages of birds. Looking at fossil beds that cover the end Cretaceous extinction such as the famous Hell Creek Formation show a devastation of all herbivores and carnivores(particularity insectivores) which at the time made up the bulk of both groups yet none of which appear after the extinction. Low activity animal groups such as Crocodilians and Salamanders on the other hand were virtually unaffected with in the case of salamanders well over 90% of species carrying on as if nothing happened. This supports the primary driver of extinction being complete ecological collapse Additionally recent core sample studies of the Chicxulub crater itself reveal that the impact site was particularly rich in volatile fine particulates such as hydrocarbons and sulfur which were ejected high into the atmosphere in quantities which models suggest could have led to up to three yeas of perpetual darkness. That would be sufficient to lead to a complete global collapse of the ecosystem resulting in a mass extinction of flora which resulted in a cascade of impacts that led to all primary consumers unable to supplement their diet to starve to death. Afterwards once the initial carrion boon was exhausted carnivores would similarly have succumbed. Only the lucky few mammals and birds that adapted to eat the non perishable seeds were able to hold on long enough for the sun to once again support photosynthesis allowing the food chain to reestablish or so the theory goes.

  • @citiesskyscrapers4561
    @citiesskyscrapers45615 жыл бұрын

    Great video.

  • @snager80
    @snager805 жыл бұрын

    many small mammals, especially ones evolved in drought-heavy areas, get all their water from the plants and insects they eat. there are also some rodents that get nutrients from eating bark or dried grasses. a raft with some insects green plant matter nine feet long and three feet wide could then sustain probably one tiny mammal for a couple of months or several for a week or two. anyone whose ever been to a petshop may have noticed how well rodents tolerate living in cramped conditions: maybe this is a trait that helped south american rodents on their journey. its also possible that there were thick mangrove swamps or something similar all across the Atlantic, which would explain how monkeys got to south america.

  • @fijiancrestediguana
    @fijiancrestediguana5 жыл бұрын

    I like how you used a Fijian Crested Iguana to illustrate the Green Iguana. At first I thought this was a mistake, but it's cool, considering the Fijian Iguanas (Brachylophus sp.) are believed to have reached Fiji on similar rafts as the Caviomorphs in this video. Just a neat coincidence!

  • @lizardlegend42
    @lizardlegend425 жыл бұрын

    "When all other options have been ruled out, the logical option may be the most absurd." -Sherlock Holmes

  • @cyberiandeprochan7998
    @cyberiandeprochan79983 жыл бұрын

    Thats my first time seeing India breaking off from between Madagascar and Australia and hit the Asian mainland. Woow.

  • @snow.flower
    @snow.flower5 жыл бұрын

    My favorite show on youtube.

  • @andromedabloom3277
    @andromedabloom32773 жыл бұрын

    I can see it now: You're just chilling there on the beach, sunbathing or so, and out in the distance from the ocean, things become visible. They're indistinguishable, but they're getting closer, and closer, closer.... Bunches of floating vegetation. With "caviomorphs" chilling on top. Just... slooowly getting closer.

  • @AustinFoster
    @AustinFoster5 жыл бұрын

    You should do a video on the evolution of bats, or maybe more generally the evolution of flight among mammals.

  • @Im-Not-a-Dog
    @Im-Not-a-Dog5 жыл бұрын

    How closely related are North and South American rodents?

  • @tlshortyshorty5810
    @tlshortyshorty58104 жыл бұрын

    “That’s got to be be the best pirate I’ve ever seen.” “So it would seem.”

  • @kowalityjesus
    @kowalityjesus5 жыл бұрын

    These are some of my favorite videos EVAR. Thank you PBS, I promise I won't try to convince congress to cut your funding!

  • @tb9360
    @tb93605 жыл бұрын

    Behind the scenes episode!!!! What is the process behind making your awesome videos? Thanks Steve!

  • @culwin

    @culwin

    5 жыл бұрын

    OF COURSE, Steve.

  • @Wevegottosticktogether
    @Wevegottosticktogether5 жыл бұрын

    What happened to your latest video about birds?

  • @xxxxii24iixxxx

    @xxxxii24iixxxx

    5 жыл бұрын

    Yeah I just clicked on it and it disappeared

  • @Bbybg

    @Bbybg

    5 жыл бұрын

    So glad I saw this because I thought I was going crazy. I was in the middle of watching it and now it’s gone.

  • @GloriousDoctor

    @GloriousDoctor

    5 жыл бұрын

    Very true. I was thinking youtube was acting crazy

  • @ToMinecraftAdventure

    @ToMinecraftAdventure

    5 жыл бұрын

    Fazz Gaplant Ha, I watched it before it was removed.

  • @vinicius2uiciniv

    @vinicius2uiciniv

    5 жыл бұрын

    I thought the whole channel had been deleted, what a relief

  • @georgebeauchamp3287
    @georgebeauchamp32875 жыл бұрын

    I live on the east coast of Florida, right about halfway between Miami and Georgia. After Hurricane Maria passed out in the atlantic, there were quite a few cold, hungry iguanas on the beach that likely came from Puerto Rico or Dominica.

  • @peterdanielman
    @peterdanielman5 жыл бұрын

    This is my favourite tv show.

  • @orghidanstefanandrei2861
    @orghidanstefanandrei28615 жыл бұрын

    ...what if an African Swallow carried those Histricognathes there?? monty python jokes aside, all cavies are simply the cutest animals, I've owned guinea pigs and a chinchilla. Sad that most chinchillas are raised and sacrificed in horrible conditions for their fur. The only animal that deserves that are those who would do the same thing...it's the second reason I'd never buy a chin coat, first being the ridiculous price.

  • @johnlee7164
    @johnlee71645 жыл бұрын

    New video HYPE!

  • @IkanaMusicBox
    @IkanaMusicBox5 жыл бұрын

    Guys. Never stop making videos

  • @RiggingDoctor
    @RiggingDoctor5 жыл бұрын

    Haha! That’s how we felt when we sailed across the Atlantic! Nothing looked more awe inspiring than when we saw our first island after almost a month at sea!

  • @daxxonjabiru428
    @daxxonjabiru4285 жыл бұрын

    I wish she could narrate all the science videos.

  • @semmelknodel7431
    @semmelknodel74312 жыл бұрын

    Ok I pull up

  • @ChrisCVW
    @ChrisCVW4 жыл бұрын

    Owners of caviomorph pets might suggest that a small flaw in the theory of crossing oceans by an 8 day journey on a raft of sticks is the implausibility of such a raft not to be nibbled down into matchwood within 2 days. Source: the fate of every stick that has ever been exposed to my degus or chinchilla.

  • @Tzimisce777
    @Tzimisce7775 жыл бұрын

    Thank you, I really like the video! Please make one about multituberculata, it is a really interesting clade of animals, but only few even know about them.

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