Scientists reveal a never-before-seen species of leopard-size apex predator that lived in lush forest 30 million years ago.

One branch of theropods were giants in South America while another filled smaller niches, but in Australia they reversed ...

A new study suggests that emus and rheas - and by extension, potentially animals like velociraptors - are anything but ...

Legend has it the axolotl was not always an amphibian. Long before it became Mexico’s most beloved salamander and efforts to ...