In paleontology

The largest stegosaurus skeleton ever found is expected to fetch millions of dollars at auction in New York next week, likely fueling objections from paleontologists.

The fossil, estimated to be approximately 150 million years old, was put on display at Sotheby's on July 10 and will be exhibited there until its sale on July 17.

A drought in Texas dried up a river flowing through Dinosaur Valley State Park, exposing tracks from giant reptiles that lived some 113 million years ago, an official said on Aug. 23.

The fossils’ updated age makes them several hundred thousand years older than the human ancestor “Lucy”

Miners in the Klondike gold fields of Canada's far north have made a rare discovery, digging up the mummified remains of a near complete baby woolly mammoth.

Members of the local Tr'ondek Hwech'in First Nation named the calf Nun cho ga, which means "big baby animal."