View Single Post
Old 05-10-2016, 07:58 PM
Colibri Colibri is online now
SD Curator of Critters
Join Date: Oct 2000
Location: Panama
Posts: 38,428
Originally Posted by Hail Ants View Post
I would hazard a guess that it has something to do with primates not being carnivores. And proto-humans only became major carnivores (or omnivores) by way of tool-making and weapon building, something that claws are a detriment to doing.
No, many prosimians, similar to ancestral primates, are mainly insectivores and also eat small vertebrates. Claws would be useful for catching prey. And there are many tree climbing non-carnivores like squirrels that have claws. Nails evolved in ancestral primates due to their climbing style, not diet.