Cretaceous Period

About 127 million years ago, tiny birds the size of grasshoppers lived alongside some of the biggest animals to walk the Earth, including the long-necked sauropods, a new study finds.

A 100-million-year-old spider trapped in amber has something you just don't see nowadays.

Researchers in Egypt just uncovered a newly identified long-necked dinosaur known as Mansourasaurus shahinae. This is only the sixth dinosaur to be discovered in Egypt.

A rare find in amber connects ancient ticks to feathered dinosaur hosts.

An analysis of 16 baby pterosaur embryos found in northwestern China shows that these little reptiles likely couldn't fly once they hatched.

Horned frogs' powerful bites hint that an extinct, ancient relative may have packed even more of a mouthy wallop.