The Crocodile's Unusual Sex-Determination System Explained

Crocodiles dont have sex chromosomes like most animals on earth. That means that their sex cant be determined by their genes. So what determines the sex of their offsprings then? Thats the topic of this episode of Facts in Motion.
Enjoy.
Music by LoboLoco freemusicarchive.org/music/Lob... & www.bensound.com/royalty-free-...
creativecommons.org/licenses/...

Пікірлер: 579

  • @percivalyracanth1528
    @percivalyracanth15286 жыл бұрын

    "So what happens if you raise the temperature even higher? Does it make a male crocodile?" "No, it's gender will be 'dead' crocodile."

  • @shannongrymes6264

    @shannongrymes6264

    Жыл бұрын

    The eggs would probably get too hot and the babies would die 😢

  • @fluffysquishball
    @fluffysquishball6 жыл бұрын

    Keep at what you're doing. The effort you put into these are very apparent and it won't be long till KZread let's your videos be properly seen. You really do deserve more subscribers and they'll come))

  • @Grand_History
    @Grand_History6 жыл бұрын

    Crocodiles have gone through millions of years of climates changes. Ice ages and much higher temperature during the Mesozoic didn't stop them, so I doubt global warming will effect them much at all

  • @factsinmotion3978

    @factsinmotion3978

    6 жыл бұрын

    True. But you have to keep in mind those changes usually happened a lot slower giving animals more time to adapt. The cooling of the planet that resulted in the Ice Age took 20 million years - not just 100 - and it still resulted in mass extinctions globally. And that's the problematic part of this whole climate change thing. It's not only the temperature itself, it's also the rate of change that's so dangerous. On top of that, many crocodile populations are already dangerously small bc of humans, which makes them vulnerable to rapid environmental change.

  • @Epsilonsama

    @Epsilonsama

    5 жыл бұрын

    @@factsinmotion3978 It will take more than 100 years for big changes in temperature. While there is a trend of higher temperatures it wont be a dramatic change in a century. It will probably be around a couple of thousand of years which as we have seen in world history it has happened before. But the world wont get as hot as the time of the dinosaurs any time soon cause we are in an interglacial period and in a couple of thousand of years the ice age will come back with a vengeance.

  • @noneofyourbusiness4294

    @noneofyourbusiness4294

    5 жыл бұрын

    @@Epsilonsama we've had a change of a couple degrees Celsius in those past 100 years. That's the issue. I won't go into the topic if humans are responsible for it, it's pointless, however, that's a rapid rate we have going on, and the side effects are massive.

  • @sneakysnake7695
    @sneakysnake76956 жыл бұрын

    What's common between Crocs, onions and ogres ? LAYERS!!!!

  • @sneakysnake7695

    @sneakysnake7695

    6 жыл бұрын

    I subbed ,this is quality content

  • @frostbitetheannunakiiceind6574

    @frostbitetheannunakiiceind6574

    6 жыл бұрын

    SneakySneaky Snake sigh

  • @kazuyakenzaki1320

    @kazuyakenzaki1320

    6 жыл бұрын

    Sigh

  • @quack2390

    @quack2390

    6 жыл бұрын

    SneakySneaky Snake huh? Ogres have layers?

  • @ashknoecklein

    @ashknoecklein

    6 жыл бұрын

    thank you

  • @YuubiTimberwolf
    @YuubiTimberwolf5 жыл бұрын

    baby crocs calling for thier mom is the best sound ever

  • @TheGreatWolfYT
    @TheGreatWolfYT6 жыл бұрын

    Baby crocs look so cute !

  • @vinnyvdalidemonet8527

    @vinnyvdalidemonet8527

    6 жыл бұрын

    There little cries/chirps are pretty cute too!

  • @TheGreatWolfYT

    @TheGreatWolfYT

    6 жыл бұрын

    Jimmy Weeks yeah

  • @powderedbread2905

    @powderedbread2905

    6 жыл бұрын

    The Great Wolf I dare you to pick one up

  • @TheGreatWolfYT

    @TheGreatWolfYT

    6 жыл бұрын

    Rainbow the Kitten I already did this. I also pet a full-grown croc called Hannibal. He was a gator, but gators are crocs.

  • @xxwolfiethewolfxx1889

    @xxwolfiethewolfxx1889

    6 жыл бұрын

    The Great Wolf the Cries r as well!

  • @rockinrich8
    @rockinrich86 жыл бұрын

    Maybe because crocodiles evolved so long ago, that’s why they have no sex chromosomes. These videos are so interesting!!!

  • @factsinmotion3978

    @factsinmotion3978

    6 жыл бұрын

    good theory. I actually didnt even look for an answer to why that is.

  • @gaydolfhitler6310
    @gaydolfhitler63105 жыл бұрын

    i wonder what evolutionary benefit this has.

  • @Crusader1089

    @Crusader1089

    3 жыл бұрын

    Not all features of an animal need to present a specific advantage in order to develop. However I conject that the fluctuating number of the sexes during certain climate events increases the selective pressure as only the most desirable members of the over-abundant sex will reproduce. This is believed to be the evolutionary basis for sexual reproduction in the first place. Males are less likely to reproduce than females and so competition is accelerated. Useful genes will become extremely sexually desirable and rapidly spread throughout the entire species.

  • @misterpractical

    @misterpractical

    3 жыл бұрын

    @@Crusader1089 Ah, I see you are a person of culture as well.. 😌🍷

  • @TheDKing38
    @TheDKing386 жыл бұрын

    4:10 "All crocodiles will soon be killed off by the Manbearpigs."

  • @Narrowcros

    @Narrowcros

    6 жыл бұрын

    Only retards think global warming isn't real

  • @Tory91802

    @Tory91802

    6 жыл бұрын

    John-117 😂😂

  • @lastmanstanding5423

    @lastmanstanding5423

    6 жыл бұрын

    @Narrowc - Manbearpig is real... I was it once... it took my foot clean off...

  • @wetstoffels3198

    @wetstoffels3198

    5 жыл бұрын

    @@Narrowcros The earth could very well be warming. But did humans destroy a planet that has survived for billions of years without somehow possessing some thermoregulating systems? Unlikely.

  • @TheRed4123

    @TheRed4123

    4 жыл бұрын

    what he meant was that the sun is getting hotter each year, warm and ice ages are completely normal thing

  • @vinnyvdalidemonet8527
    @vinnyvdalidemonet85276 жыл бұрын

    Congrats you are on to a winning formula. Keep on making more of this good stuff.

  • @fyhdhgg
    @fyhdhgg6 жыл бұрын

    u are so underrated. Keep up the good work because i just found your channel and it is entertaining!

  • @factsinmotion3978

    @factsinmotion3978

    6 жыл бұрын

    Thanks!

  • @redpower6956
    @redpower69563 жыл бұрын

    Amazing channel! Please keep doing these amazing videos! Thank you.

  • @angellowy
    @angellowy6 жыл бұрын

    I find it awesome that The Terrifying and Large Powerful Reptile is capable of being gentle and caring for the young. From now on, instead of a Mama Bear, we should compare with a Mama Croc lol

  • @noneofyourbusiness4294

    @noneofyourbusiness4294

    5 жыл бұрын

    The thing is, that we tend to look at reptiles as scary animals. To be fair: large reptiles are scary as hell, they're pretty much designed to kill. They aren't exactly smart, but there's a reason why crocs have been around for millions of years without any major changes. They're one of the few families that actually lived alongside dinosaurs, I'd say they deserve credit for that

  • @Lemilano
    @Lemilano6 жыл бұрын

    163 subs?!? WHAT?!

  • @factsinmotion3978

    @factsinmotion3978

    6 жыл бұрын

    ; ) Still fairly new channel and I'm still figuring out my animations and what topics I wanna cover.

  • @Lemilano

    @Lemilano

    6 жыл бұрын

    Facts in Motion Expect more subs coming😉

  • @factsinmotion3978

    @factsinmotion3978

    6 жыл бұрын

    thanks - let's hope so ;-)

  • @tygraham3431

    @tygraham3431

    6 жыл бұрын

    EmiL - CSGO and more he has 7k now but still not enough

  • @animistchannel2983

    @animistchannel2983

    6 жыл бұрын

    ...and the next day it was 9.3k subs. It looks like the KZread "suggestion" algorithms have noticed the outpouring of likes, comments, and new subs and are referring more new viewers here. Personally, I think the presentation style and pacing are perfect.

  • @maitisumitranjan
    @maitisumitranjan5 жыл бұрын

    Keep up the good work bro...i really enjoy your video very much.

  • @greekanimation3814
    @greekanimation38146 жыл бұрын

    Wow I never thought of that you are making very interesting videos

  • @factsinmotion3978

    @factsinmotion3978

    6 жыл бұрын

    thanks!

  • @Lobo_Loco
    @Lobo_Loco5 жыл бұрын

    Excellent produced! Lucky Greetings Lobo Loco

  • @starwarfan8342
    @starwarfan83426 жыл бұрын

    Loved that Jurassic park reference you had going on.

  • @christinastreiff
    @christinastreiff6 жыл бұрын

    I love alligators. Sleeper sharks and alligators. That's normal, right?

  • @factsinmotion3978

    @factsinmotion3978

    6 жыл бұрын

    Dunno. I'd see a doctor for that ;)

  • @crackedemerald4930

    @crackedemerald4930

    6 жыл бұрын

    Don't forget alligators

  • @opalthediloalt9595

    @opalthediloalt9595

    6 жыл бұрын

    It’s normal to love animals, so I think so.

  • @dedude6784

    @dedude6784

    6 жыл бұрын

    Yeah

  • @christinastreiff

    @christinastreiff

    6 жыл бұрын

    Facts in Motion I don't think it's curable. Also, I don't want it cured. ;)

  • @FiddleWiddle
    @FiddleWiddle6 жыл бұрын

    I can't believe this channel isn't famous

  • @charbychu6113
    @charbychu61136 жыл бұрын

    Awwwww croc moms are so caring. That’s a heartwarming fact

  • @Tarix13
    @Tarix136 жыл бұрын

    Amazing! May I ask which software is used to make this animation?

  • @factsinmotion3978

    @factsinmotion3978

    6 жыл бұрын

    Illustrator + after effects

  • @Tarix13

    @Tarix13

    6 жыл бұрын

    Thank you! Your team have awesome designers :D

  • @Gothead420
    @Gothead4206 жыл бұрын

    Wunderschöne Animation! Beautiful animation!

  • @aarondoll4776
    @aarondoll47766 жыл бұрын

    Your vids are petty good it reminds me of lemmino

  • @franl155
    @franl1553 жыл бұрын

    I first heard about this in a programme narrated by David Attenborough, about a project to increase the numbers of Galapagos giant tortoises. He said that the importance of the temperature had only just become known, and the researchers were worried that they might have inadvertently produced same-sex hatchlings. but luckily the various incubators they used had enough temperature variation to ensure mixed-sex baby tortoises. I couldn't remember which way round it was, or what the cutoff temperature was, so I'm very glad for this video for that alone.

  • @MAHONRAIKENTHBPANA
    @MAHONRAIKENTHBPANA6 жыл бұрын

    keep up the good work sir I always watch your videos

  • @factsinmotion3978

    @factsinmotion3978

    6 жыл бұрын

    much appreciated

  • @Mossydeerbones
    @Mossydeerbones6 жыл бұрын

    Your animation style feels kinda too close to kurzkesagt, but I do like the content and the visuals. Subbed

  • @thumptherapist3816

    @thumptherapist3816

    6 жыл бұрын

    Wait what? I legit thought this was kerzkesagt ._.

  • @terrenmaplethorpe4001

    @terrenmaplethorpe4001

    6 жыл бұрын

    Kurzkesagt does not own the paper layer over format

  • @asz1029

    @asz1029

    6 жыл бұрын

    > kurzkesagt > kerzkesagt > Kurzkesagt It's *Kurzgesagt*, people. *Kurzgesagt*. As in kurz=short and the past tense of sagen='to say', gesagt.

  • @mirzaahmed6589

    @mirzaahmed6589

    5 жыл бұрын

    German connection.

  • @bravo11x
    @bravo11x5 жыл бұрын

    Man these videos are awesome

  • @jakebramhall3479
    @jakebramhall34796 жыл бұрын

    A purple ad came on and I decided to watch. Completely forgot that this was the video I was actually trying to watch

  • @paraptoryx
    @paraptoryx6 жыл бұрын

    this is amazing! keep it up! ^_^

  • @factsinmotion3978

    @factsinmotion3978

    6 жыл бұрын

    thanks - I will!

  • @commandercritic9036
    @commandercritic90366 жыл бұрын

    Crocodilians are one of the most successful species on the planet, having survived virtually unchanged since the time of the dinosaurs, that's a time span of 225 million years at maximum Heck, there were even crocodilians BEFORE the dinosaurs, though not the ones we're familiar with today, still, that just goes to show, the Crocodilian family have been around for a LONG time, their species has not only seen the rise and fall of Empires and Civilisations,but the rise and fall of whole groups of animals and species THAT'S what I call a survivalist

  • @legendarypussydestroyer6943

    @legendarypussydestroyer6943

    5 жыл бұрын

    Commander Critic That's nothing compared to jellyfish, which has existed for about 555 million years.

  • @legendarypussydestroyer6943

    @legendarypussydestroyer6943

    5 жыл бұрын

    That's before the cambrian explosion and trilobites. Having seen entire animal phylums rise and fall is what i definitively call a survivalist.

  • @goldenglove4663
    @goldenglove46635 жыл бұрын

    I LOVE THIS CHANNEL.

  • @putukerti9253
    @putukerti92536 жыл бұрын

    I love the animations

  • @xaldredxanthos5405
    @xaldredxanthos54056 жыл бұрын

    This looks like Kurzgesagt's original animation style, which I absolutely love. Their style is evolving, which is good but this style brings a sense of nostalgia.

  • @thegallus--3556
    @thegallus--35566 жыл бұрын

    It has been said that this way of sex-determination is what led to the demise of the non-avian dinosaurs.

  • @kahlilme2025

    @kahlilme2025

    6 жыл бұрын

    The Gallus ;:-:; Any sources? Because dinosaurs did inhabit cold and even polar environments. If the notion's implying what I think it is, it already makes no sense.

  • @finnclark8114

    @finnclark8114

    6 жыл бұрын

    TyrannosaurusLives he means the ratio of males to females, not the variables that have to be met to be male or female.

  • @kahlilme2025

    @kahlilme2025

    6 жыл бұрын

    Finn Clark Oh. Still, sources would be lovely.

  • @finnclark8114

    @finnclark8114

    6 жыл бұрын

    TyrannosaurusLives never mind he is saying what you are thinking, he is making no sense so yh, sources please lol

  • @thegallus--3556

    @thegallus--3556

    6 жыл бұрын

    TyrannosaurusLives I made that comment randomly. But still, should I even edit that comment? Also, wouldn't polar dinosaurs choose between spring or summer to hatch their eggs? Plus, there wasn't any polar ice caps at the time, sea levels are very high and dinosaurs could just simply migrate to other areas if need be.

  • @ranoonay
    @ranoonay6 жыл бұрын

    Baby croc-a-gators and their calls are so cute! 😆

  • @sushi_goblin1385
    @sushi_goblin13852 жыл бұрын

    not only is this an amazing video.... but is it just me or are mother crocodiles adorable? like, they are so loving to their brood from what i can understand from this video

  • @rudjennelsanchez1021
    @rudjennelsanchez10216 жыл бұрын

    this guy should have almost 1M subs

  • @h3egypt
    @h3egypt6 жыл бұрын

    Great channel

  • @ashknoecklein
    @ashknoecklein6 жыл бұрын

    Crocodilian moms are such good moms. Crocodile babies must be cute because they receive so much parental care.

  • @ShewhofoundGod

    @ShewhofoundGod

    6 жыл бұрын

    They are

  • @maxamillionfreedom2754
    @maxamillionfreedom27546 жыл бұрын

    i just learned something new, i would have never guessed a species sex could be determined by something like temperature, atleast not an animal as massive as a croc, thats something i would have expected more from an insect species. (Edit: subbed)

  • @limerence8365
    @limerence83656 жыл бұрын

    When I watched this you had exactly 60,000 subscribers.

  • @medojones7624
    @medojones76246 жыл бұрын

    Very interesting thanks for that

  • @1piecemage
    @1piecemage6 жыл бұрын

    love the videos!

  • @feathero3
    @feathero36 жыл бұрын

    I didnt know that the mother croc would assist babies stuck in there eggs. Thats so sweet!

  • @amirulzamri7833
    @amirulzamri78336 жыл бұрын

    It's nice to learn about reptiles that take care of its offsprings.

  • @MohammedAli-hl4mr
    @MohammedAli-hl4mr6 жыл бұрын

    U deserve more subs

  • @earthc
    @earthc6 жыл бұрын

    what is this first music

  • @gavinriley965
    @gavinriley9656 жыл бұрын

    This guy needs more subs....

  • @gavinriley965

    @gavinriley965

    6 жыл бұрын

    Deserves

  • @HalfBit360
    @HalfBit3606 жыл бұрын

    You said Crocs and Gators, but the search bar said Gators and Crocs, anyone else notice?

  • @dinoclaire1014

    @dinoclaire1014

    6 жыл бұрын

    Yes, that really annoyed me.

  • @mooncheese6638

    @mooncheese6638

    6 жыл бұрын

    That moment you realize you spent the entire vid readin comments ;-;

  • @dinoclaire1014

    @dinoclaire1014

    6 жыл бұрын

    Good job, Unknown Darkness.

  • @thejurassicwarewolf3300
    @thejurassicwarewolf33006 жыл бұрын

    remember kids always make sure your croc eggs are at the right temperature or else it will hatch into a 20 foot tall unholy chicken kraken hybrid

  • @airtas
    @airtas6 жыл бұрын

    Good video, keep it up

  • @factsinmotion3978

    @factsinmotion3978

    6 жыл бұрын

    thanks!

  • @DoggyEffect
    @DoggyEffect6 жыл бұрын

    This chanell is super awesome and I love it already. I only have one complain. Please get this annoying and distracting music away!!

  • @rashidrojas176
    @rashidrojas1766 жыл бұрын

    Also some sea turtles! Great video

  • @dartanyanthemeow-sketeer8674
    @dartanyanthemeow-sketeer86746 жыл бұрын

    *Seeing an amazing video fills you with determination

  • @mufalmewww
    @mufalmewww5 жыл бұрын

    crocs are ancient, theyve seen hotter and cooler global temps.. im sure they have some kind of adjustment mechanism

  • @noneofyourbusiness4294

    @noneofyourbusiness4294

    5 жыл бұрын

    There's been something viral last year or so. When it gets too cold, a certain species of crocs stick their snout out of the water, so they can breathe. Their metabolism slows down so much in the process, that they don't care about being frozen in place until it gets warmer again.

  • @NikkyKicks
    @NikkyKicks6 жыл бұрын

    This happens in leopard geckos too! We’re fairly certain that our gecko is what’s called a ‘hot female’, which happens when the critical temperature is hot enough to produce a mixed clutch. Sometimes when this happens a female will develop certain intersex characteristics, like being bigger, having large labial bumps, and producing less eggs, all of characteristics my gecko has. In fact, we didn’t even figure out she was female until almost a year of having her, and it took some intense examination. But, since she’s a rescue, we can’t know for sure. I’m not sure if this happens In crocodilians, but I wouldn’t be surprised.

  • @nathanielarthur8200
    @nathanielarthur82006 жыл бұрын

    1:46 heh movie refrences from jurassic park

  • @bremcurt9514
    @bremcurt95146 жыл бұрын

    Could anyone tell me what the music is that is being played in this video? Mainly from 1:05 on

  • @mightymarshtomphill7531

    @mightymarshtomphill7531

    5 жыл бұрын

    Im trying to figure it out did you find it yet?

  • @infidelheretic923
    @infidelheretic9235 жыл бұрын

    I understand the mechanism behind this. If it’s too hot or too cold times are bad. So a female is likely to give you at least some grand babies but not very many. If times are good then you want males to fertilize as many females as possible and give you loads of grand babies.

  • @christopherg2347
    @christopherg23476 жыл бұрын

    1:47 Is that a Jusrassic Park 1 reference? The robotic arm? The old guy with a beard?

  • @biscoito1r
    @biscoito1r6 жыл бұрын

    How about the other members of the order Crocodilia such as the gharial ?

  • @themk4982
    @themk49826 жыл бұрын

    Ohhhh, baby crocodiles are adorable

  • @Nekrochomikon8
    @Nekrochomikon86 жыл бұрын

    I love your accent.

  • @itzdcx7991
    @itzdcx79916 жыл бұрын

    That’s pretty cool

  • @AndrewAce.
    @AndrewAce.6 жыл бұрын

    And remember, Alligators Can't Chew Gumballs...

  • @beethao9380
    @beethao93806 жыл бұрын

    dang. life and science are amazing.

  • @juggalox1000
    @juggalox10006 жыл бұрын

    +1 sub love your videos

  • @kee9065
    @kee90656 жыл бұрын

    I already knew how crocodiles sex was determined. Thanks Wild Kratts 🙃

  • @joaoguardini6770
    @joaoguardini67706 жыл бұрын

    4:11 - the sun rises in front of the mountains

  • @metrophidon
    @metrophidon5 жыл бұрын

    This seems like something out of SCP.

  • @Dualumina
    @Dualumina6 жыл бұрын

    I'm impressed by the female croc's mothering skills, considering their specie's reputation.

  • @marylight9700
    @marylight97006 жыл бұрын

    Crocs have survived for Billions of years, I don't think they're gonna go extinct any time soon

  • @PinieNox
    @PinieNox6 жыл бұрын

    As far i know of all reptiles have TSD, some breeders try to determine what sex they hatch, how ever its very tricky and dangerous for the hatchlings becase it might get to cold or hot, and like in a nest the temprature is not 100% equal in the incubator

  • @Tina-fd5dr
    @Tina-fd5dr5 жыл бұрын

    Is how tall we are solely determined by our DNA though?

  • @ArcaneAxolotl
    @ArcaneAxolotl6 жыл бұрын

    Birds such as penguins use ZW sex determination, not XY

  • @109Rage

    @109Rage

    6 жыл бұрын

    The naming of the chromosomes is completely arbitrary. The point was "If they have this combination of two chromosomes, female; if it's this other combination, it's male."

  • @falsevacuum4667
    @falsevacuum46676 жыл бұрын

    We already locate and protect sea turtle nests to help their populations. We could do something similar with Crocodiles, by locating nests, and artificially creating the right temperatures for some nests to hatch as all male. We can't give up preserving ecosystems without a fight.

  • @tchy7246
    @tchy72464 жыл бұрын

    don't turtles and other reptiles also use this mechanism - are those methods different from crocodilians?

  • @niklasroling2875
    @niklasroling28756 жыл бұрын

    Is 1:47 a nod towards the first jurassic park movie ?

  • @Clone6385
    @Clone63856 жыл бұрын

    Was that a spectic eye?

  • @yelonade
    @yelonade6 жыл бұрын

    Interestingly Turtles gender is also determined by temperature during the incubation period, with warmer temperatures resulting in Female turtles.

  • @franl155

    @franl155

    3 жыл бұрын

    and tortoises. The only other egg-laying reptiles I know of are snakes, and I wouldn't be surprised if they do this, too.

  • @nodle6741
    @nodle67415 жыл бұрын

    I like your voice :D

  • @sandthecomic1213
    @sandthecomic12136 жыл бұрын

    Can you do alligators vs crocodiles

  • @zakzeus.shuufHunaak
    @zakzeus.shuufHunaak6 жыл бұрын

    Could the temperature be a direct link to food in that particular environment, thus the climate dictates the sex of the species survival.?

  • @tmaster7503
    @tmaster75036 жыл бұрын

    I knew this before but I don't know how.

  • @robthatsme9831
    @robthatsme98314 жыл бұрын

    One word “sophisticated” describes everything you publish. May we know your name?

  • @senacario5942
    @senacario59426 жыл бұрын

    Crocodile is a great parent

  • @mattmcdermott4477
    @mattmcdermott44776 жыл бұрын

    Shoulda done this in Jurassic Park

  • @muffin_cat4117
    @muffin_cat41176 жыл бұрын

    why is Allent Grant SO GOD DAMN TOUCHY WITH THE EGGS 1:50

  • @0riole
    @0riole6 жыл бұрын

    I hope crocodiles don’t go extinct :(

  • @factsinmotion3978

    @factsinmotion3978

    6 жыл бұрын

    yeah would be a shame. They also fill an important role in the food chain. So it might have consequences for alot of other animals too.

  • @raffica3579

    @raffica3579

    6 жыл бұрын

    Since these creatures had survived many events that caused extinction of other species in the past. I doubt they'll be extinct anytime soon.

  • @melanietran7998
    @melanietran79984 жыл бұрын

    can someone confirm what kind of biological process this is? is this an example of epigenetics? help

  • @tozzifan76
    @tozzifan764 жыл бұрын

    TSD also works in turtles

  • @AllieThePrettyGator
    @AllieThePrettyGator2 жыл бұрын

    In some crocs both mom and dad protect the babys

  • @Galomortalbr
    @Galomortalbr6 жыл бұрын

    considering a male can fertilize a tons of females that probably not going to be a issue

  • @katiekatie6289

    @katiekatie6289

    5 жыл бұрын

    Why do you think most species on the entire planet have a 50/50 split in the first place? If it's really that simple, don't you think most species would be majority female?

  • @fightermkii6368
    @fightermkii63686 жыл бұрын

    Why does your profile pic look like my year 7 humanities teacher?

  • @journalsonhypotheticalasce3693
    @journalsonhypotheticalasce36935 жыл бұрын

    Interesting

  • @TheLordHighNoob
    @TheLordHighNoob5 жыл бұрын

    I thought this was about how crocodiles had a system to remain determined at sex. I was not dissapointed

  • @chromeguy1406
    @chromeguy14066 жыл бұрын

    Cool

  • @laurenpinkiepie8663
    @laurenpinkiepie86636 жыл бұрын

    What about YY

  • @quincymarquis-brown5803
    @quincymarquis-brown580310 ай бұрын

    Honestly I heard this in a show and couldn’t believe it. Like how. Also how do they know when to make their nest to prepare for the eggs? And also how do they know to layer the nest for different genders?

  • @quincymarquis-brown5803

    @quincymarquis-brown5803

    10 ай бұрын

    I guess it’s genetically ingrained in all species to create shelter though which is also amazing to me.