Crash Course Zoology | How Animals See | Episode 6 | PBS

One of the most common adaptations seen in the animal kingdom is vision. Nearly 96% of all animals have some kind of eyes and they've proven so evolutionary advantageous that they've evolved multiple times in multiple ways and in a surprisingly short amount of time! We walk through the different types of eyes, show you how they work, and even take you a the day in the life of one