Why the Latest Science Leads Us to a New Theory of Human Nature, by Jonathan Leaf (Bombardier, 320 pp., $21) Ever since Darwin, biologists have believed that much could be learned about human nature ...

A chimpanzee female (Pan troglodytes schweinfurthii) sleeps in a nest built in a tree in Uganda's Kibale National Park. The ...

Chimpanzees can change their minds when the facts no longer support their previous beliefs – a rational level of thinking that was once considered uniquely human. In a series of experiments designed ...

On the genetic level, we're not all that different from chimps. But those small differences in dna can have massive effects.

Chimps’ love for crystals could help explain our ancestors’ fascination with the shiny stones. The forerunners of modern humans collected crystals for which they had no apparent use, say scientists.

Chimpanzees may look like smaller, hairier versions of humans, but when a full-grown chimp decides to throw its weight around, the difference is stark. Their strength is not just a gym-rat talking ...

Chimpanzees in Michigan are not considered "persons" with human rights, according to the state's Court of Appeals. That means the owners of the DeYoung Family Zoo in the Upper Peninsula will not need ...

(AP) - Chimpanzees in Michigan are not considered “persons” with human rights, according to the state’s Court of Appeals. That means the owners of the DeYoung Family Zoo in the Upper Peninsula will ...