On its face, a comparison of monkeys and apes seems straightforward: Modern primates have defining physical features and behaviors that clearly sort them in different categories. Beginning with living ...

Add Yahoo as a preferred source to see more of our stories on Google. The terms "ape," "great ape," "monkey," "primate," and "gorilla" are often used interchangeably, but they describe very different ...

One of the big questions we raise in comparative psychology is about the main difference between humans and animals. There is an easy short answer to what sets us apart from the rest of the animals: ...