Sensitive hearing may have evolved in mammal ancestors far earlier than scientists once believed. By modeling how sound moved ...

For over a century, scientists have been captivated by the mystery of how mammals evolved from sprawling creatures resembling lizards to the graceful, upright walkers we see today. This fundamental ...

Discover more about the egg-laying monotremes of Oceania and the ancient traits they still carry.

This is what Novaculadon mirabilis may have looked like. The spots and stripes are speculative. Likely this animal could have sat in one hand. The lower jaw is just 16.5 mm long, only 4 mm longer than ...

Researchers have uncovered the fossil of an early mammal named the "crazy beast" that lived 66 million years ago alongside dinosaurs and giant crocodiles on Madagascar, and it's unlike any mammal ever ...

On the geological timescale, humans’ stay on the planet earth amounts to little more than the blink of an eye. Before we emerged, earlier creatures enjoyed golden ages for more than twice as long as ...

This illustration by Mauricio Alvarez depicts 'Yeutherium pressor,' a tiny mammal that lived in the time of the dinosaurs in what is now southern Chile The fossil was discovered in the Rio de Las ...

One of the most important steps in the evolution of modern mammals was the development of highly sensitive hearing. The middle ear of mammals, with an eardrum and several small bones, allows us to ...

Tucked away in a remote bonebed in Arizona's Petrified Forest National Park laid hundreds of fossils, including a fragile jawbone belonging to one of the oldest-known flying reptiles: the pterosaur.

STORY: Scientists from the University of Chile say they have unveiled findings of a mouse-sized mammal that roamed Earth 74 million years ago. :: University of Chile Handout The fossil belongs to the ...