Oxygen isotopes data enable researchers to look far back into the geologic past and reconstruct the climate of the past. In ...

A new genus of tiny, hornless deer that lived in South Dakota during the Oligocene Epoch approximately 32 million years ago has been discovered by a team of researchers from Badlands National Park, ...

With sharp catlike teeth and a doglike body, ancient carnivores called hyaenodonts were once at the top of the food chain, but the entire lineage was wiped out about 25 million years ago, leaving ...

Long before humans walked the planet, a massive creature ruled the forests and open plains of ancient Eurasia. Paraceratherium, a hornless giant and a distant relative of today’s rhinoceroses, lived ...

Temperatures at Earth’s highest latitudes were nearly as warm after Antarctica’s polar ice sheets developed as they were prior to glaciation, according to a new study led by Yale University. The ...

LAWRENCE — A geologic formation near Aix-en-Provence, France, is famed as one of the world’s chief treasure troves of fossil species from the Cenozoic Era. Since the late 1700s, scientists there have ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. With sharp catlike ...