Monkeys come in all shapes and sizes and ... Blisters will form on the female’s red chest when she is most receptive to mating. Yellow baboon males can weigh up to 55 pounds.

Though it looks like a baboon, the mandrill is a monkey of its own ... Some research suggests that while females prefer mating with dominant males, the purpose of facial coloration is to ...

To find out if baboons, which are particularly sociable monkeys, are capable of this level of sophistication, researchers conducted an experiment at a French primate centre. Eighteen Guinea ...