An international team of researchers has discovered a half-billion-year-old fossil with its internal organs still intact.

For decades, Paranthropus boisei, an early hominin that roamed eastern Africa a million years ago, was known for its gigantic jaw and powerfully constructed biting muscles. Its coarse-grass and reed ...

It’s an unprecedented look into prehistoric anatomy.

A 430-million-year-old fossil has rewritten leech history, showing they are at least 200 million years older than previously believed. Unlike today’s bloodsucking leeches, their ancient ancestors ...

Those who know a lot about fossils are likely already familiar with the Mazon Creek fossil just outside Chicago. Those who don't know a lot about fossils and the Mazon Creek site? They soon will, ...

First discovered in the Mazon Creek fossil beds of Illinois in 1955, the Tully monster (or Tullimonstrum gregarium) has long challenged biologists and paleontologists alike. It lived about 300 million ...