eli5 Why do our faces look different but other animals faces look the same

Question

Excluding the different color or texture of their skin/fur

In: Biology

Answer 1

our brains are more attuned to human faces, so we’re more able to distinguish human features, like a large or small nose. it’s good for socializing, which is a very important driver in our evolution. we aren’t really good at recognizing animals’ faces (for what reason would evolution have given us the ability to tell two rats apart?) because we don’t need to. it doesn’t mean that other species have less visual variation, it’s just that we aren’t good at recognizing it