How Male Seahorses Evolved to Give Birth

Ғылым және технология

Male pregnant seahorses give birth to around a thousand babies. Seahorses come from the family Syngnathidae, which also includes seadragons and pipefish. They're the only animals in which the males get pregnant. After females transfer eggs, the males then fertilise them. But why do male seahorses give birth? And how did this way of reproduction evolve?
All images and videos used herein are 1) in the public domain, 2) used under a Creative Commons license, 3) used with a license, or 4) used under the parameters of Fair Use law
Credits:
liquidguru. vimeo.com/49536991
liquidguru. vimeo.com/42486100
Klaus Stiefel. flic.kr/p/dot8ns
Tesk0002. commons.wikimedia.org/wiki/Fi...
References:
Whittington CM & Friesen CR. The evolution and physiology of male pregnancy in syngnathid fishes. Biol Rev Camb Philos Soc 2020;95:1252-1272.
Roth O, et al. Evolution of male pregnancy associated with remodeling of canonical vertebrate immunity in seahorses and pipefishes. Proc Natl Acad Sci U S A 2020;117:9431-9439.
Wilson AB, et al. Male pregnancy in seahorses and pipefishes (family Syngnathidae): rapid diversification of paternal brood pouch morphology inferred from a molecular phylogeny. J Hered 2001;92:159-166.
#wildlife #nature #seahorse

Пікірлер: 129

  • @frankenscience3802
    @frankenscience38023 жыл бұрын

    Please like, comment and subscribe if you enjoy the video!

  • @chloevalleau1650

    @chloevalleau1650

    Жыл бұрын

    What are your sources?

  • @JustAboutAnything66

    @JustAboutAnything66

    5 ай бұрын

    I have a thriving population of Fathead Minnows in my garden pond. Every summer, when the water gets warm enough for eggs to incubate, the male Fathead Minnow finds and spruces up a little cave around the water's edge. He then entices a female to come lay eggs in his cave. If she likes him, they dance around just outside the cave, and then she goes in and lays eggs inside. He fertilizes the eggs and protects them with his life. He is not pregnant. It does not matter where the cave is located, it does not mean he is pregnant. Just because the "cave" is inside the seahorse, that doesn't make him pregnant. Claiming a male seahorse is pregnant because of how he protects his spawn is like saying a female kangaroo is pregnant every time the joey climbs back into the pouch.

  • @daydreaming2113
    @daydreaming21132 жыл бұрын

    The seahorse looked like he were sneezing his kids out 😂 cute

  • @gopract8246

    @gopract8246

    11 ай бұрын

    Indeed 😂😂

  • @gigidotto9014

    @gigidotto9014

    11 ай бұрын

    If only it was that easy for human women to push babies out😂

  • @crimeinfoja7184

    @crimeinfoja7184

    10 ай бұрын

    😂😂😂😂😂

  • @user-ze3uh9yx4r

    @user-ze3uh9yx4r

    27 күн бұрын

    😂😂😂😂😂😂

  • @gonzalogutierrez510
    @gonzalogutierrez5102 жыл бұрын

    "... some eggs can be lost... " I know almost nothing about seahorses (prior to watching this video), but that looked like a lot of eggs lol Also, quality is incredible as always

  • @amaccoy

    @amaccoy

    2 жыл бұрын

    I was trying to figure out all of those fit inside her

  • @foxyboop4164

    @foxyboop4164

    Жыл бұрын

    It looked like all of em tbh lol

  • @theopulentone1650

    @theopulentone1650

    Жыл бұрын

    I was seriously getting a bit pissed off. She needs to learn how to aim better lol

  • @crimeinfoja7184

    @crimeinfoja7184

    10 ай бұрын

    @@theopulentone1650😂😂😂😂😂😂

  • @striker07beat
    @striker07beat3 жыл бұрын

    letting a comment for yt for one of the most underrated science channels, amazing quality content!

  • @frankenscience3802

    @frankenscience3802

    3 жыл бұрын

    These types of comments keep me going! Thanks man

  • @must_tash4195
    @must_tash41952 жыл бұрын

    5:05 best pic of a seahorse ever

  • @emawerna
    @emawerna2 жыл бұрын

    Some fish, like the Platy fish we have in our home aquarium, give birth to live young. This is the female giving birth to live young. Live bearers like Platys have a reproductive advantage in a relatively crowded environment with other species (like a fish tank with other species of fish in it). The fry pop out of the mother and can swim to safety. However, one gender is expending the energy. The female has to expend energy avoiding the males who want to mate all of the time. The solution in the home aquarium is to up the number of females for every male so that he is chasing around a lot of girls rather than just one. Wild female platys and other similar live bearer females in natural environments don't get such relief. So, female Platys have to expend energy: 1) avoiding males, 2) producing eggs, and 3) retaining those eggs in their bodies until the fry hatch. The females "blow up" when they are pregnant. They are less streamline, making it cost more energy for them to swim. Energy-wise, all the males have to do is find the females and mate with them. Instead of him searching the gravel or hiding spots for eggs to fertilize like with other fish species, he knows where the eggs he wants are. Hence, he chases the females relentlessly, putting more pressure on the females. He has excess energy. She is struggling to swim well enough so that she can find enough food in her expanding pregnant body. Any energy intensive task she can give to him instead (like egg guarding or even male pregnancy) is going to mean more energy overall goes into producing offspring. With shared responsibilities, you are harnessing both male and female energy instead of only female energy. So, Mrs. Seahorse gets to go eat and fill her body with eggs again before her previous brood in even born. As a result, there are more Seahorses in the world.

  • @oticiaredman8516

    @oticiaredman8516

    10 ай бұрын

    Thank you. I love learning new things.

  • @user-pc8bl3qk5k
    @user-pc8bl3qk5k3 жыл бұрын

    You literally deserve more subscribers! Your videos are pure excellence.

  • @frankenscience3802

    @frankenscience3802

    3 жыл бұрын

    Thanks man! Hopefully I’ll get some more with time!

  • @madmonkee6757

    @madmonkee6757

    2 жыл бұрын

    And you absolutely need to learn what the word "literally" means.

  • @abstracter8627
    @abstracter86273 жыл бұрын

    What an excellent well researched video, thank you

  • @frankenscience3802

    @frankenscience3802

    3 жыл бұрын

    Glad you enjoyed it!

  • @florianl3342
    @florianl33422 жыл бұрын

    I was watching a few of your videos and they were absolutly amazing and then i saw that you only have 5700 Subs how is that even possible?!?!?! Your Videos are so professional keep it up!

  • @jamesbizs

    @jamesbizs

    2 жыл бұрын

    Tripled since you said this

  • @DefektiveEnvy
    @DefektiveEnvy2 жыл бұрын

    You answer all the niche biology questions I have! Best channel, new favorite

  • @madmonkee6757
    @madmonkee67572 жыл бұрын

    I've always been fascinated by seahorses, pipefish, and seadragons. A little trivia for you: in Baltimore, in the 50s and 60s (and maybe longer) seahorses were a secret symbol for lesbians (because it's the males that give birth). There's something you won't see in a John Waters movie.

  • @vzqrt
    @vzqrt Жыл бұрын

    Humans: my wife is giving birth!! Seahorses: My husbands giving birth!!!

  • @AbsteEnt
    @AbsteEnt2 жыл бұрын

    Love your documentation!

  • @4weentertainlifenaturetrav436
    @4weentertainlifenaturetrav436 Жыл бұрын

    I don't know why I'm watching this, but I love it. Thanks for the information I just learned somethings.

  • @paulinehalkyard9312
    @paulinehalkyard93122 жыл бұрын

    What a brilliant video this was very interesting well done 😍😍😍😍

  • @simonbuchner8330
    @simonbuchner83302 жыл бұрын

    Hello! Very glad to have found this top quality channel but you should change your voice audio processing. For example the s-sounds are very sharp so maybe eq that out a little bit

  • @JillyBean_1987
    @JillyBean_19872 жыл бұрын

    Seriously, this video is so professional. Because your subscriber count is so low (I have no idea how!) I thought maybe you stole a video from National Geographic or something! I promise I really mean that. Not just trying to stroke your ego!

  • @eetuthereindeer6671

    @eetuthereindeer6671

    2 жыл бұрын

    Sometime during the last year, this channel lost the ability to respond to comments. Too busy making these darn near perfect videos i guess 😂 like literally i have no ideas for any new improvements. Maybe other than responding to questions 🙂

  • @Madhukirtan
    @Madhukirtan2 жыл бұрын

    Absolutely amazing; fascinating!!

  • @joralva24
    @joralva242 жыл бұрын

    Amazing videos bro

  • @spacedimensia
    @spacedimensia2 жыл бұрын

    genuinely made me sad when those eggs fell

  • @HelionDark
    @HelionDark2 жыл бұрын

    Great video! Awesome chanal

  • @khamok6916
    @khamok69162 жыл бұрын

    Great video

  • @socialist-strong
    @socialist-strong3 жыл бұрын

    new video aww yea thank you :)

  • @frankenscience3802

    @frankenscience3802

    3 жыл бұрын

    Yes! New video out every 2 weeks so stay tuned for the next one!

  • @harmqueen5034
    @harmqueen5034Ай бұрын

    And that’s why seahorses have been so successful at their own pace and they are now being

  • @thuantran610
    @thuantran610 Жыл бұрын

    Fascinating!

  • @iraeis7267
    @iraeis72672 жыл бұрын

    got recommended this after watching the suicidal salmons video. You deserve to get blessed by the algo

  • @learngermanwithtushar

    @learngermanwithtushar

    2 жыл бұрын

    Exactly, same happened to me

  • @Tereselynn
    @Tereselynn7 ай бұрын

    This is amazing! Aren't they precious? Awe!

  • @kevinarmandosiliezarmadrid3015
    @kevinarmandosiliezarmadrid30153 жыл бұрын

    Very informative, good job Bro

  • @frankenscience3802

    @frankenscience3802

    3 жыл бұрын

    Thanks man!

  • @marconoboa1154
    @marconoboa11542 жыл бұрын

    This was so beutifull

  • @footfault1941
    @footfault1941 Жыл бұрын

    From its appearance more like a reptile to unparalleled reproductive behavior, seahorse is missing nothing for wonder & awe. Very illustrative as usual featuring the latest update in. Grades of paternal care are shown leading up to the most complex one. Yet, evolutionary transition does not look as smooth or straightforward as presented here. Some steps more should be taken to the complex level of male reproductive system. That's the impression from this superb footage. Thank you very much! Next!

  • @tonyyero7231
    @tonyyero72315 күн бұрын

    Male seahorses are unique among animals in that they get pregnant and give birth to their young. During courtship, female seahorses use a special ovipositor to inject their unfertilized eggs into the male's brood pouch, which is located on his tail. So yes, scientifically he IS giving birth as well as fertilizing them.

  • @footfault1941
    @footfault1941 Жыл бұрын

    "pregnant" is a gender-specific term according Oxford or Cambridge dictionary whose definition goes "women or female animals having .." What male seahorse is doing is beyond description! (No offense intended.)

  • @user-zu6vn1xk8w
    @user-zu6vn1xk8wАй бұрын

    No wonder I love all sorts of nature❤. Air, earth, sea!

  • @--Paws--
    @--Paws--2 жыл бұрын

    Male sticklebacks, relatives of the sygnathids, do guard the eggs.

  • @tonyyero7231
    @tonyyero72315 күн бұрын

    Male seahorses are unique among animals in that they get pregnant and give birth to their young. During courtship, female seahorses use a special ovipositor to inject their unfertilized eggs into the male's brood pouch, which is located on his tail. So YES, scientifically he is fertilizing her eggs and expelling them live!! THAT IS GIVING BIRTH. She carries the eggs...that simple.

  • @lisaduncanson6086
    @lisaduncanson6086 Жыл бұрын

    It’s El Mago’s fault that the seahorse’s level of parenting has been altered!

  • @brittneysanders4027
    @brittneysanders4027 Жыл бұрын

    Wow

  • @lemsavage9473
    @lemsavage94732 жыл бұрын

    seahorse mpreg

  • @kevinpeters6709

    @kevinpeters6709

    2 ай бұрын

    7:26 fish bussy

  • @comradeweismann6947
    @comradeweismann69472 жыл бұрын

    Comments for the Algorithm God

  • @frankenscience3802

    @frankenscience3802

    2 жыл бұрын

    Thank you! Really appreciate the support 🙏🏽

  • @Skittenmeow
    @Skittenmeow2 жыл бұрын

    Ok this needs more views. Not on social media atm so guess I'm texting and emailing peeps

  • @trippiechris1852
    @trippiechris18522 жыл бұрын

    So if im getting this correct theyre mammals but they are not mammals?

  • @Genzafel

    @Genzafel

    2 жыл бұрын

    They dont have a 3 bone ear, neither produce milk a long side many other adaptations that make crown mammals… well mammals, this is just another example of convergent evolution

  • @autisticscreechling4950

    @autisticscreechling4950

    2 жыл бұрын

    Technically, no, since pregnant mammals have a placenta to provide the unborn offspring with nutrients which doesn't happen with seahorses. Even though seahorses carry and birth live young, they don't qualify as mammals.

  • @JOELITO3055
    @JOELITO305511 ай бұрын

    Contractions? More like bustin a……..😂

  • @OpenGangnamStyle
    @OpenGangnamStyle10 ай бұрын

    Megnancy. Meriods. Muterus. Menopause.

  • @UniDocs_Mahapushpa_Cyavana
    @UniDocs_Mahapushpa_Cyavana2 жыл бұрын

    Don't viviparous plants (yes they exist) also have male pregnancy being (presumably) hermaphrodites?

  • @joroc

    @joroc

    2 жыл бұрын

    They don't have 2 genders

  • @UniDocs_Mahapushpa_Cyavana

    @UniDocs_Mahapushpa_Cyavana

    2 жыл бұрын

    @@joroc They are both male and female. Parthenogenesis in plants does not happen in plants through gametes AFAIK, so parthenogenesis only plants don't have a biologically defined gender.

  • @francisluglio6611

    @francisluglio6611

    Жыл бұрын

    @@joroc way to have an opinion on something you know nothing about

  • @shiftingSandss

    @shiftingSandss

    16 күн бұрын

    ​@@jorocwhy are people who have no idea what they're talking about always so confident? the 'female' organs of a flower are the carpels. they produce ovules, which become seeds when fertilized. the 'male' organ of a flowering plant is the stamen- it produces pollen, which fertilizes the ovules. some flowers, like flax and lilies, have both stamen and carpels. they have 'two genders'. even in cases where the flower has only one of the two reproductive organs, the plant that flower grows on usually has both 'male' and 'female' flowers. there are also animals that literally have two genders. many sea slugs are hermaphrodites and will do the deed with both parts simultaneously. this has been a useless explanation of why a two year old comment was wrong. thank you for coming to my ted talk

  • @jacquelineoconnor6469
    @jacquelineoconnor64694 ай бұрын

    I think somebody is just giving the wrong names to the sea horses just for the sake to say that male can be pregnant too. What makes a female sea horse female? Is not the ability to carry new life? Also, the “female” sea horse is dropping eggs, where are those eggs fertilized?

  • @thegoldensuperior1863

    @thegoldensuperior1863

    2 ай бұрын

    Male = Smaller, but More Gametes (Sperm/Semen) Female = Bigger, but Fewer Gametes (Ovum/Eggs)

  • @shiftingSandss

    @shiftingSandss

    16 күн бұрын

    ...what? by that logic, only mammals, marsupials, and a handful of reptiles/sharks are female. other animals don't carry their eggs inside their bodies until they're fertilized and develop into live young. they either eject the eggs and fertilize them outside of their body, like most fish, or fertilize them inside their body and let them develop outside of their body, like birds. the female creates the eggs. the male fertilizes them. what male seahorses do is kinda like if male birds had kangaroo pouches and kept their eggs there after the female laid them.

  • @disappointed1638
    @disappointed16382 жыл бұрын

    This confirms they don't give birth to them they hold them in their pouches/pockets until they hatch. Giving birth and holding them in a pocket are two different things.

  • @dignaallen3244

    @dignaallen3244

    2 жыл бұрын

    They have contractions and give birth that’s painful and real

  • @piglin469

    @piglin469

    2 жыл бұрын

    well conciption happens inside them so it counts as pregnancy

  • @lilbich6576

    @lilbich6576

    2 жыл бұрын

    Male provide the nutrition needed by the eggs to develop and had contractions to push them out. Get you feminist apologetic as** outa here

  • @Ruiluth

    @Ruiluth

    2 жыл бұрын

    @@dignaallen3244 it's not really painful for almost every other animal.

  • @jamesbizs

    @jamesbizs

    2 жыл бұрын

    The eggs are inserted into the male where they are then fertilized, and are hatched INSIDE the male, until he gives birth to them. How is that not giving birth?

  • @paulfrank7164
    @paulfrank71642 жыл бұрын

    It's amazing to me how 🤔 living things evolve overtime like God gave every living thing upgrades overtime it's awesome how else could u explain it 🤷🏿‍♂️

  • @itsyaboiherman
    @itsyaboiherman Жыл бұрын

    Hmmm if they give birth are they still male?

  • @tris-xi4bq

    @tris-xi4bq

    6 ай бұрын

    Yes they're males that give birth simple as that.

  • @diane3209

    @diane3209

    Ай бұрын

    I knew the lgbt was gonna find this

  • @luckylovescheese3683
    @luckylovescheese368311 ай бұрын

    For humans this would be so painful 🤦‍♂️

  • @AbdelRahmanSeyamEg
    @AbdelRahmanSeyamEg2 жыл бұрын

    all these signs and man is still arrogant that all of this is by randomness not design 😐

  • @FaithMatini

    @FaithMatini

    2 жыл бұрын

    How do you know that God didn’t design them to be like that? How can randomness result in species that know they need to breed in order to populate the world and transfer their genes?

  • @lemonadelemon1960
    @lemonadelemon19602 жыл бұрын

    So hold up? She cant carry them because shes female? Ummm...

  • @magnarcreed3801

    @magnarcreed3801

    2 жыл бұрын

    I wouldn't if given the option, let males do it.

  • @Zyleace

    @Zyleace

    2 жыл бұрын

    Its because female seahorses have the dicks instead.

  • @user-nd7rg5er5g

    @user-nd7rg5er5g

    2 жыл бұрын

    You could say it's a little fishy.

  • @autisticscreechling4950

    @autisticscreechling4950

    2 жыл бұрын

    @@user-nd7rg5er5g Get out

  • @tris-xi4bq

    @tris-xi4bq

    6 ай бұрын

    Yeah it's pretty simple she can't fertilize them so the male does it.

  • @mbww8572
    @mbww8572 Жыл бұрын

    Male pregnancy - see Suriname toads!

  • @hjames78
    @hjames782 жыл бұрын

    talk about switching gender roles smh

  • @typower9
    @typower910 ай бұрын

    'May have evolved from...' 'May have/possibly caused the......to evolve.......' And there you have it: Evolution-all based on conjecture but treated as fact.

  • @yacarlysluzon1828
    @yacarlysluzon18282 жыл бұрын

    They actually didn't thy have a hallow almost like a kangaroo pouch that acts as incubator* But the mom ultimately is the one who has the eggs and babies to begin with* I like sea horses* I wanted to study them at one point in life* But not any more* Anyways thanks for the video* May 19, 2022 11:24am I know what I know because I know what I know also I'm still me*/

  • @noahway13
    @noahway132 жыл бұрын

    Wow. Male seahorse are so WOKE.

  • @thegoldensuperior1863

    @thegoldensuperior1863

    2 ай бұрын

    Not as woke as Parthenogenesis or Mysandrists...

  • @iker900
    @iker900 Жыл бұрын

    Now I understand the majoras mask sidequest

  • @UnicornFairy42
    @UnicornFairy422 жыл бұрын

    Seahorses are so beautiful when they do their courtship dance and change colors. 🥹🥹🥹🥹🥹🥹🥹🥹🥹🥹🥹🥹🥹🥹🥹🥹

  • @picandvideo
    @picandvideo11 ай бұрын

    The classification of seahorse sexes must be wrong.🤔🫤

  • @tris-xi4bq

    @tris-xi4bq

    6 ай бұрын

    Nope male seahorses do indeed give birth. And they're species of fish that females turn into males or males turn into females. All of that is natural in their world.

  • @saimaddy3456
    @saimaddy34562 жыл бұрын

    Great video

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