Eyebrows lack an obvious function. Does new research solve the riddle of these thin arcs of facial hair?
Researchers report for the first time wild apes sharing food with near strangers.
Recent discoveries, and new analyses of old evidence, are revolutionizing the way scientists look at human history.
Depending on the gene pool, a species can adapt relatively quickly to new external pressures.
Homo floresiensis thrived on the island of Flores for thousands of years—and then vanished. One researcher is studying rat remains to figure out why.
The human birthing process is more difficult than that of any other primate. One researcher is using bones and computers to figure out why—and what to do about it.