These are taken from National Geographic’s February issue, where UK science journalist Ed Yong discusses what animal eyes are made up of and how they have evolved. He explains how it’s the animal’s evolutionary needs that have conditioned the uses and appearance of their eyes, and therefore how they see the world in different ways.
Interestingly, eyes never do the same thing across species. Rather, they have evolved to suit our needs. So the eyes of an animal will not have the same functions as the eyes of a human.
Green tree python