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

The fossil is the earliest known multituberculate, a distant rodent relative. Aug. 20, 2013— -- What comes to mind when you hear the phrase "Jurassic Park"? Chances are it's images of a gigantic ...

An international research team has uncovered 270-million-year-old fossil tracks belonging to a dog-like predator considered one of the earliest mammal ancestors on the island of Mallorca. Led by ...

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 ...

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 ...

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.

For millions of years, the land we now call the United States has been home to towering prehistoric beasts, strange sea creatures, and lush ancient forests that no longer exist. Evidence of this ...

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 ...

If you’ve always thought echidnas and platypuses were distant cousins who went their separate ways on land and water, think again. A single fossilized arm bone, found in a remote corner of ...

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 ...

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 ...