Gibbons

Gibbons are the smallest tailless monkeys. They are excellent acrobats.

Jo Setchell is a primatologist at Durham University in Britain. She studies primates, the group of mammals that includes gorillas, chimps, monkeys, gibbons, mandrills, and lemurs. And, of course, humans.

"Humans aren't descended from monkeys, but from a common ancestor with apes." "Our common ancestor with chimpanzees was an ape. Our common ancestor with gibbons was a monkey."