A university student on a fossil-hunting field trip in Dorset made a stunning discovery: a 145-million-year-old jawbone ...

For nearly a century, scientists have been puzzling over fossils from a strange and robust-looking distant relative of early ...

A University of Arizona researcher is part of an effort to identify the diseases carried by ticks, and she's asking people to send her samples.

Teeth and bones are both hard, white and heavy with calcium, but that doesn't make them one and the same. From the way they ...