Eli5: How come all animals look like each other (ex. You won’t tell the difference between 2 squirrels) but humans differ so heavily? Why do humans have so many unique facial an body features?

Question

Eli5: How come all animals look like each other (ex. You won’t tell the difference between 2 squirrels) but humans differ so heavily? Why do humans have so many unique facial an body features?

In: Biology

Answer 1

People that spend a lot of time with animals can usually tell them apart by look. Animals differ greatly if you know where to look, you just don’t have the massive number of points of reference that you do for human faces. You see hundreds and hundreds of faces every day.