A 1.6-million-year-old Ethiopian skull blends ancestor and descendant features, rewriting the origin story of Homo erectus.

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 ...

The timeline of microglia replacement evolution and its technical preparation in the pre-replacement era is summarized in this figure. Credit must be given to the creator. Only noncommercial uses of ...