A newly described species from the Burgess Shale had three eyes, clawed limbs, and a tail full of gills—plus internal organs preserved in stunning detail.

A newly discovered arthropod fossil, Mosura fentoni, has preserved eyes, nerves, and blood vessels - a rare insight into early arthropods.

More than 500 million years before “The Simpsons” introduced us to Blinky, a fish with an extra eye swimming through ...

Anomalocaris was one of the first predators in the Cambrian seas. It could grow up to a metre long and had great vision and fast limbs, which helped it hunt well. At first, it was speculated it ...

Sensory features on the armored exoskeletons of ancient fish may be the reason why humans have teeth that are sensitive to ...

Teeth are good for chewing and biting, but they are also sensitive – and that may have been their original function hundreds of millions of years ago ...

In the 460-million-year-old Eriptychius, the researchers found large, open pulp cavities and branching dentin tubules — an ...

At first glance, it looked like just another radiodont — a group of extinct marine predators famous for Anomalocaris, the shrimp-like creature with 16,000 eyes that once ruled Cambrian seas.

If you've ever gotten a toothache from eating something cold like ice cream, scientists at the University of Chicago might ...

Around 591 million years ago, Earth’s nearly vanished magnetic field triggered a surge in oxygen that paved the way for ...