A study of tool use among chimps, our closest living relatives, has cast light on the human evolutionary journey.

"We really wanted to get a handle on the basic properties of chimpanzee skeletal muscle - and find out whether they were different from those of human muscle," he explained. Along with cardiac ...

Rather than a prototype chimp as commonly believed, our common forefather was an ape unlike any that exists today. From it, humans and modern-day apes evolved into two completely different ...