THE DIFFERENCE Humans and chimpanzees are easy to tell apart, even though they share a primate ancestor. Jumping genes helped sculpt their distinctions.
DIAMOND IMAGES PHOTOGRAPHY/ISTOCKPHOTO; SRBOZUK/ISTOCKPHOTO
Face-to-face, a human and a chimpanzee are easy to tell apart. The two species share a common primate ancestor, but over millions of years, their characteristics have morphed into easily distinguishable features.