yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

5 Things to Know About Eyes | Explorer


less than 1m read
·Nov 11, 2024

Hi, I'm Michael Stevens, and these are five facts you need to know about the eye. Research into the evolution of the eye is creating all kinds of technological breakthroughs. Technologies like robots, drones, and cameras that can detect cancer earlier have all benefited from research into the eye.

Eyes didn't evolve linearly in animals like you and me. They didn't evolve from the oldest species to the youngest or from the simplest to the most complex. Instead, the eyes that animals have evolved independently to help them survive. Stereoscopic vision, that is, taking 2D images from our eyes and creating a 3D image in our brains, evolved from our needs to hunt for food.

Humans can see about 10 million different colors. This helps us select mates, but it's nothing compared to what other animals can do. Birds have four color receptors; we only have three, but that's nothing compared to the mantis shrimp, who has 12.

Animals with horizontal rectangular pupils, like goats, are able to physically rotate their eyes inside their heads when they put their heads down to graze. This protects them from predators. They can see what's in front of them while their head is down. It doesn't always work, but it has helped their species stay afloat, and that's what matters.

More Articles

View All
The Paradoxes of Life
As kids, we believed a lot of different things: from thinking that the gifts under the Christmas tree were kept there by Santa to imagining a tiny fairy that came in at the dead of night to steal the loose tooth from underneath our pillows. Most of the th…
YC Ultimate Job Guide: Startup Stages
[Music] Yeah, we’re here to talk about startup stages. Try to be as informative as possible. Obviously, you know, given my position here, I would love for you to consider working at a YC startup. It sounds like some of you are already at startups, but I’m…
Will This More Affordable Rocket Ship Take You to Space One Day? | Short Film Showcase
I want us to have a frontier in space. I want to live in the society that has a frontier, and if the only way to get that is to build it, then I’m going to build it. [Music] Out in the middle of the Mojave Desert, you will find the Mojave spaceport. Rig…
Private jet expert destroys noob!
So, I’ve always wondered how much you need to be making to comfortably own a private jet. This 20-year-old Citation X will run you $5.8 million and carries eight passengers. Okay, so this is not a Citation X. That’s the first. This guy doesn’t know what …
How to Increase Willpower and Self-Control
The studio isn’t perfect right now, and it gets so hot in here during the day. I tried to shoot this video two times, and I got way too sweaty. So now, I’m filming it at night, but I’m still doing [Music]. Also, there are like moths and flies in here ‘ca…
What Does Colonizing Mars Look Like? | MARS
What will life be like in a early Mars colony? ROGER LAUNIUS: Let’s take some stages in terms of how we might do things on Mars. There is exploration, somebody going out and coming back. The next stage would be some sort of research station. We will most…