The fingers of one of the hands were "retouched to become pointed like claws," the study's co-author said.

Exclusive: The discovery shows the particles can travel around the body and may lodge in organs ...

Fossils unearthed in Morocco are the first from a little-understood period of human evolution and may be remains of a mysterious human ancestor.

H5N1 bird flu has infected growing numbers of people worldwide in recent years, but this week saw something new: the first recorded human case of an H5N5 avian influenza virus. What is this virus and ...

On a dry lakebed in southern New Mexico, a set of ghostly footprints has forced archaeologists to redraw the map of the first Americans. These tracks, pressed into mud by teenagers, children, and ...