Opposable Thumbs
It’s a popular myth, or at least an oversimplification, that opposable thumbs are uniquely human and separate us from other animals. That’s simply not true. Virtually all primates have opposable thumbs…chimps, gorillas, orangutans, baboons and bonobos. Many also have opposable big toes, which humans have largely lost through evolution. Bonobos are particularly interesting in this context because they’re one of our two closest living relatives (along with chimpanzees), sharing roughly 98.7% of our DNA. Their…

