Australopithecus afarensis

Lucy, discovered 50 years ago in Ethiopia, stood just 3.5 feet tall − but she still towers over our understanding of human origins

Science
Dr. Sarah Adams

In 1974, on a survey in Hadar in the remote badlands of Ethiopia, U.S. paleoanthropologist Donald Johanson and graduate student Tom Gray ...

Why do people have wisdom teeth?

Science
Dr. Sarah Adams

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send ...