Natives of the Ethiopian Highlands, gelada monkeys' teeth do not seem suited to their diet. With those massive canines, one would assume the gelada to be a carnivore. However, they prefer to eat ...

Because tooth shape varies with fracture properties of the foods that primates eat, relationships between dental form and function can teach us about the diets of our distant ancestors. Aristotle ...

In one Indian town, monkeys will steal your glasses — and give them back if you toss them a container of mango juice. It's one more sign of the impact of urbanization on the wild.