Animal Development: We're Just Tubes - Crash Course Biology #16

omg xD THis is the funniest intro <3

Me looking at these comments 8-11 years later

Nervous system originates from the ectoderm?
Were the first nervous systems just touchy feely outside layers?

I wish good luck to Hank

why does it seem like hank silently hates sea sponges for their simplicity

thank you

I didn't expect the video to start this way

"Ontogeny recapitulates phylogeny"
Well yes but actually no

quarantine made me study biology anatomy and physiology gotta walk on school with full of knowledge

Did he just call Hegel a spaz

Sea sponges are the Mongols of Hank's videos

He is cute by the way

is he a hippie on LSD?

As a Video by V-Sauce says, we are 8-holed donuts.

I know some humans whose anus' and mouths' are the same thing 😆

Why. i grinded up my pet dog and then gave it a stimpack and it was fine.

that opening is cursed

Happy to know that we're all~ just a bunch of little butts! :D

Excuse me but Sponges can be immortal so I feel like they win

Why recap theory is discredited by darwin? Iam still confused about that...

Well i am gonna stop lookin for recaptulation theory cause i dont wanna go EVEN MORE hardships of "UNTEACHIN MYSELF"

Hank didn't mention that sea turtles have 2 holes and they can use their anus to breathe in certain times. It's true and you can check it

jellifish life is enjoying
hA

Dude looks like Dwight Schrute

Wikipedia says morula is 16 cells! Don't get this answer wrong on your test. :D

Deuterostome?

If you’re going to have a quiz in your Biology class and you teacher asked you to see how many times he says “Anus” it’s 16

That's totally me in the intro, but I'm a brunette. heh

can I have whatever you were smoking in the beggining of the vid?

Thumbs up just for the hippy get up ❤️❤️

Haha dis is probably the funniest crash course - broke the √4th wall like four times

Love this guy 😂😂😂💯

I love this man so much

for a moment i thought he was drunk!

Mmm, Morula pie!! 😂😂

You = Tube

best. intro. ever.

that’s pretty far out dude

ANUS!

For a second i thought hank was drunk

Here from 2019. Didn't think I could enjoy Hank more. I was wrong.

That into is me from 08 to 11.

Triploblast sounds like a really cool pokémon

On wikipedia it says that the morula stage is 16 cells.

2019


This is the year of my Finals. Psychedelia