A new study theorizes that evolution ticks at different speeds, especially when a big group of organisms first appears.

Scientists working in Ethiopia's Afar Region have made discoveries that rewrite our understanding of early human history. For ...

A digital reconstruction of a million-year-old skull suggests humans may have diverged from our ancient ancestors 400,000 years earlier than thought and in Asia, not Africa, a study found. The ...

A reanalysis of a one-million-year-old human skull found in China is challenging the established timeline of human evolution, and suggests a new branch of the human family tree, as well as a possible ...