True, they've probably been doing this for a million years. But they're our closest relatives, and we have living examples of primates that are at various poin

True, they've probably been doing this for a million years. But they're our closest relatives, and we have living examples of primates that are at various points of eating vegetation/meat, using tools and not, etc... Seeing a primate eating meat and using tools despite being built to eat vegetation suggests a link to our own past.