Sex Determination: More Complicated Than You Thought 

So Nemo's dad is really his mom now...

Female clown fish: *dies* Male clown fish: *it's my time to shine*

"Hot chicks and cool dudes" Best part

That's a badass way to "Gender Reveal" Just TedEd it...

Finding Nemo just took a giant turn...

Well, this is way more simpler than how they teach us in school.

Lizards be like: who run the world? Girls!

My insights about this videos -Male social insects are walking sperms -Turtles have hot chic and cool dudes -Desert lizards are Amazons -Finding Nemo is a lie -For an aquatic invertebrate, if you're on the top you are a male. If you are in the bottom, you're a female. -If somebody ask the gender of your unborn kids, just say yes Thank me later

Wait a second. Nemo's mom died. Meaning Nemo's dad would then become Nemo's mom.... And then one of Nemo's friends would become hist stepdad. And then Nemo would become female. Disney is screwed up...

What if nemo and his dad. I'm scared to find out

“If you are a male ant, you do not have a father” I an now a ant.

"for me and my wife it's going to be a baby boy" WHY DOES THAT SOUND SO SWEET THO

When someone asks "is it a boy or girl" just say "yes" and keep walking

I'm not sure if Ted Ed was meant for kids but I'm a 24 year-old who has decided to spend all my time here from now onwards

Comments: 75% about finding Nemo 25% OF THE ACTUAL FREAKING VIDEO

This video: exists Henry VIII: *imma pretend i didn’t see that*

turtles are all either hot chicks or cool dudes😂

Clownfish: "Oh no, my wife is dead! Guess I'm a girl now..."

Did anyone else thought about Bee movie? Meaning that Barry’s dad wasn’t really his dad because just like ants they’re born without one so…Anyone else?

Human: I am a male bc my father passed me the Y chromosome from his genes. Turtles: I am a male bc it was cool that day. :))))))))

Honestly this is the most surprising and unexpected thing I've learned in many years.

woah woah woah wait, Are you saying Marlin from Finding Nemo can turn into a female??? Heck even Nemo???

narrator:and for me and my wife..we found it is a baby boy... me:awwww..

1:06 some king dude be like my wife can't produce me a male heir while the problem be in his own balls

I've learned so much I'm like I wanna learn on the Internet in part of my free time

Everyone went to the comments to talk about nemos dad lol

This was the most educational gander reveal ever 💙

5:09 "It's a girl, it's always a girl."

So are we finding Nema now instead ..

So as global warming speed up, will all turtles be female?

2:46 it's important to know that haploid does NOT mean the DNA is single stranded ! This is absolutely wrong. Haploid means there are no homolog chromosomes. DNA itself still is double stranded.

Dad: I'll keep you safe nemo I'll keep you safe ... some years later.. Nemo: Mom who's my dad..? Dad:Yes

congratulations on your little boy :D

I don't think he covered the snails and slugs.

Why wasn’t this included as an extra in a special release of Pokémon X and Y

"I'm not really sure who came up with this mnemonic but you can remember this that when it comes to painted turtles, they are all hot chicks and cool dudes" Okay, I laughed.

2:06 I am a male ant dad i miss u

This is informative, entertaining, and most of all: short enough to keep my attention. Great video! I literally laughed through the whole thing and still learned a LOT. I'm sure I will retain a lot of this information!

True information + best animation = Ted-Ed

This is very informative and I love the animations behind it. Great job ✔️

It can get even more complicated than this, read the Nature article "Sex redefined", it'll blow your mind.

I really enjoyed that joke about the Hot Turtle Chick and The Cool Turtle Dude,Nice Video!

No one : This comment section: iS nEmO's DaD AcTually nEmo'S mOm

Next topic! How does queen choosen on ant's\bee' colony ?

Wow a male ant does not have a father XD.

Now I know why Nemo's dad was desperate to find Nemo :P

Wow i knew this. I knew this topic by heart. This is one of the first ted ed videos which i could literally go on in details for like an hour. Now i feel good.

Simple yet very informative. Great video 👍

The way he said: "It's a girl. It's always a girl." @ 5:09 was hilarious

Lizards are Beyonce fans

Interesting, I learned all this stuff in school but in this video it is simple and easy to know and has images to describe what's expressed.

3:59 "they are all hot chicks and cool dudes" XD maybe that's where human got these terminologies

So you are telling me in Finding Nemo: Nemo's dad will become a female, and Nemo will become "her" mate? My childhood is ruined...

HOT CHICKS AND COOL DUDES !!!! LOL

5:31 Baby: ARE YOU DETERMINING MY GENDER!?!?!?

Very captivating narrator . The narration was also beautifully chronological

I was really hoping this was going to go into the imperfections of a genetics based system, but at least I got some cool info on clownfish

and then how did lizards evolve and how they didnt got wipeed out by disease?

dude... this channel is amazing i have seen more than 12 videos without stop

Damn that ants part is so interesting

I really like the clownfish system. We should all give it a try.

wait wait wait hold up. so... nemo can grow up to be a girl?

King Arthur: THIS BOY IS BORN TO BE THE KING, JUST LIKE HIS FATHER. Ant: Actually, I don't have a father. King Arthur: *Tears up* NOR DO I! HOW COME WE'VE SO MUCH IN COMMON!? Ant: *shakes head*

this channel explains more biology to me in a day and school does in more than a year

That was more informative & comprehensive than all of the hours they taught us this in school combined :)

Congratulations on the baby boy. I've read that the chances of having a boy or girl are more like 51/49, due to the slightly smaller sperm head of the Y sperm (Y chromosomes are smaller than X chromosomes, so the sperm head is smaller for Y than for X). The smaller sized head makes it easier and faster for the Y sperm to reach the egg than for the X sperm.

Totally mind-blowing and new for me. Very much appreciated.

I just found this Chanel out yesterday and I love it already✨🌵😌

That awkward moment when Intersex is a thing...

Congratulations !😊🍼

Finding Nemo would be a lot different if it was scientifically accurate

Still My Favourite Ted Ed Episode After All These Years ❤

Turtles Warm/hot temperature for hot chicks/female Cold/Cool temperature for Cool dudes/male LOL 😂😂😂😂😂😂😂😂😂😂 🐢🐢🐢🐢🐢🐢🐢🐢🐢🐢🐢

So Nemo's father will be a female someday.

Very well explained thanks for sharing

9 years late but CONGRATS on the baby boy!🥳👦

There are advantages and disadvantages. Obviously, they cannot evolve and adapt as quickly as sexually reproducing lizards, but they can quickly populate a new area with just one lizard. It's interesting to see how differently some lizards have evolved from others, and why they did so. Somewhere along the way, it worked out better for them.

This is amazing! I can't stop watching these videos!!! I wish my brain wouldn't just store this information uselessly and make me viably smarter...

A long time ago this was actually my first ted video and I hadn't yet realized it though

This is amazing! How did we not know this before?

This was entertaining, informational, and easy to follow. I was hesitant to click on this video because I didn't really understand what it was about, but it was the featured video on everything I clicked on so I decided to click on it and I'm glad I did. You learn something new everyday! And congratulations on your baby boy! :)

Great video, as always! Though you did forget to cover Amphibians, Squids, and Gastropods (Snails and Slugs), however, and you could've explored te average Lizard and maybe you could try more than just Squid, but explore many different Cephalopods, and maybe more kinds of Worms, along with some other unique creatures.

Female bees have a father but don't have a grandfather Male bees don't have father but have a grandfather. I told this to my mom when I was in my medical school, I even explained the genetics behind it, she said - I completely understand but still don't believe it 💀💀 They all send their children to medical school and still don't believe them, thats why I run away whenever any of my family member ask for a diagnose 👁️😭👁️

THE ANNOUNCEMENT AT THE END WAS SO CUTE!

Of course, it's even more complicated than that. Not all species are sexually dimorphic. Certain lizards, as you pointed out, undergo parthenogenesis. If such a lizard were able to speak, the word "gender" would have no meaning to it. Certain fungi have thousands of genders. Gender is a somewhat arbitrary evolutionary construct: even among humans, and this is my main point, we have other - biologically verifiable - variants to the male-female system. A transgender person's brain anatomy, for example, is much closer to that of their (so-called) biological gender (i.e. a transgender female has brain chemistry much more similar to that of a "biological" female than she does to a male). Also, the chance is not 50/50, especially at a zygotic level. Conception produces somewhere between 25-50% more male zygotes (some research indicates this may be the result of glucose levels in utero: see DOI: 10.1098/rspb.2004.2773). Male zygotes are more likely to fall prey to miscarriage and stillbirth, but at birth the ratio is still higher - roughly 106 boys for every 100 girls. Males are much more likely to fall prey to violence after birth, as well: think of the all-male drafts implemented in times of war or the "save the women and children first" mentality, which (I would hypothesize) has its groundings in strict evolutionary psychology. Environmental conditions also affect this: males are, biologically speaking, a riskier proposition because they have to compete for mating rights whereas females are all but guaranteed the chance at reproduction. Thus, in bad environmental conditions - i.e. not enough food (low glucose) and so on - the parents stand a greater chance at passing on their genes if they have a girl. However, males are favored in good environmental conditions because they have a better chance of copulating with multiple females (the males' act does not require a long gestation period). Ergo, they are a riskier proposition, but one worth taking, which is likely why at sexual maturity the ratio of males to females is roughly equal.

THAT END WAS SO CUTE!! CONGRATULATIONS!! 💖 💖

Oh the ending is so sweet ❤️ I know I’m late but congratulations!

0:17 "....the first question they ask is whether it's a boy or a girl" Indians: *wait, that's illegal*

And an x and a y gives us a..... 6th gen games.

sex-ed get it cause he is TED-ED and its called sex deter... whatever...

U taught it well. Actually it helps to find more information for my project. So thank you

Your explanation is really awesome than in school

Btw male ants still have a double helix, contrary to what the video suggests, they just have one set of chromosomes (so they have half the number chromosomes the females have, but the chromosomes they have are as big/whole as one of the corresponding chromosomes of a female).

Well, now i know why Marlin trying so hard to find Nemo

Thanks for the wonderful explanation

Watched this video in 2018. That kid is 6 years old now. How crazy is that!!

Me showing this video to my five year old son before going to get milk: *Perenting*

:) my wife and I ,have 7 sons.......26,23,20,19,17,twins 5 years old... We tried one last time in 2008 ,for a girl using IVF....We had twin boys... :)

I wish they'd mentioned that a lot of people don't think it's accurate to describe workers in eusocial insect species as female. It's more accurate to describe ants, bees, etc as having three sexes rather than two. In a lot of ways, queens and males have more in common with each other than with workers. For example, in ants, both queens and males are born with wings and lose them after mating, whereas workers never have wings. In addition, both queens and males basically just sit around doing nothing but reproduction, while workers have jobs.

Everyone's talking about the comedy n stuff, n I loved that too! But can someone congratulate this dude on his baby? Congrats❤❤