@tilscience: Two eyes on your face. Two more hiding in your brain. 👀🧠 Read more here: Lei, X., Zhang, S., Cong, P. et al. Four camera-type eyes in the earliest vertebrates from the Cambrian Period. Nature 650, 150–155 (2026). https://doi.org/10.1038/s41586-025-09966-0 #evolution #paleontology #fossils #todayilearned if you liked this video then make sure you’re subscribed to our YT channel, so you don’t miss the DINOSAUR of a video we’re dropping at the end of the month!

Fried_Plantain :

The Pineal gland being the 3rd eye now checks out

radiant :

So i i wear glasses im a six eyes

Mr. 23 :

You thought that was weird, wait till you find out that teeth used to be sensory scales on the outside of the body before anything with a jaw existed

ScienceNinja05 :

You’re kidding, our third eye was actually two eyes?

British Royal Museum :

WE WERE ROBBED- GIVE ME MY EYES BACK

corkas_ :

fhrog :

the reason why we don't lay eggs but instead are born from an embryotic sack is because some distant ancestors ended up sick with a virus that rewrote their dna. obviously there's way more about it, our dna is riddled with old "scars" of our ancestors fights with various diseases. I love evolution

hydraz11 🇨🇦🏳️‍🌈 :

So from a biology standpoint, it needed to experience being an eyes first before it could evolve into the pineal gland fascinating 🧐

Sharline Tinoco Avalos :

I went to the California academy of sciences and they had a fish with four eyes too!!! (Anableps)

Suno Samurai :

No wonder why my wife keeps saying I haven’t evolved much over the course of our marriage.

NerEye :

The fact Christians will disbelieve evolution but think it makes more sense for the world to have been made in 6 days 💀💀 (not including the day of rest)

Primo de old chap :

Scientist are just guessing at this point..

__Matt__ :

This is a Pixar character and you can’t convince me otherwise 🤣

UrDaddy688 :

Your mind’s eye huh

⚜️Prince Hill⚜️ :

hear me out.... what if we didn't evolve from that...

GreenLightIntheMirror :

evolution saw 4 eyes in vertebrae and said "you don't need allat 🙄" and saw Invertrebrates and said "you know what? Y'all can do whatever you want I dont care, 2? 6?8? as long as its divisible by two I dont care"

adam22222222 :

the 3rd eye! wild

Ken :

fascinating. thanks!

Skye <3 :

please stop moving subtitles around 😭

Kahauri :

That creature is so adorable, idk what everyone else is talking about

Victor Silva :

soooo....

Riley :

HOW DID THEY KNOW?!! The ancient people that called it a third eye…. How did they know?

Dragbeat :

So the pineal gland isn't the third eye, it is the third and the fourth😭😭😭

Brittany K :

The hieroglyph eye/brain structure parallel is ASTOUNDING

🤎🤎 :

So we were fish and then we’ll eventually turn into crabs . Got it