Chimpanzees consistently choose crystals over ordinary rocks, suggesting a curiosity that may echo early humans.

As scientists have studied the chimpanzee, they’ve found more and more similarities between humans and their closest living relatives. But when it comes to the courts, chimps and humans couldn’t be ...

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 ...