Paleontologists unearthed the fossil in Mongolia’s Gobi Desert, and the find is unique because of a sheath preserved on one ...

Chemical analysis suggests the 400-million-year-old fossil Prototaxites was neither plant, animal or fungus – hinting at a ...

Remarkable new fossils from Swartkrans Cave reveal that a prehistoric relative of humans was also extremely small and ...

A secretive creature observed by Darwin has long since been thought extinct, until observers recently spotted a specimen.

A prehistoric feathered throwback that stands five feet tall, this apex predator easily swallows its younger siblings, and ...

The blue-headed quail dove is a uniquely ancient species with no close relatives and is now on the brink of extinction. At ...