Dinosaurs are the extinct relatives of birds that roamed the lands and seas of ancient Earth. They first appeared around 240 ...

A new giant long-necked dinosaur, Dasosaurus tocantinensis, unearthed in Brazil, reveals ancient land connections. Its close evolutionary ties to a Spanish species suggest dinosaurs migrated between ...

Visit NAP.edu/10766 to get more information about this book, to buy it in print, or to download it as a free PDF. But we mammals did survive. The characteristics we now equate with “mammalness” are ...

A nearly complete dinosaur skeleton discovered in Patagonia is helping scientists crack the mystery of alvarezsaurs, a bizarre group of bird-like dinosaurs. The fossil of Alnashetri cerropoliciensis ...

Dinosaur skeletons often dominate museum halls, from the towering Tyrannosaurus rex known as Sue in Chicago to Sophie the Stegosaurus in London. These fossils shape how you picture dinosaurs. Yet ...

Did dinosaurs live in Alabama? Fossils, museum finds and the famous Selma dinosaur egg reveal the state’s prehistoric past.

A nearly complete 90-million-year-old dinosaur fossil from Patagonia, Alnashetri, reveals how alvarezsaurs evolved and shrank over time.

Latimeria or Coelacanth (Latimeria chalumnae Smith), A living fossil, the oldest known living lineage of Sarcopterygii (lobe-finned fish and tetrapods).© Openfinal/Shutterstock.com Nature craves ...

A river in Australia may have been flowing for 300 to 400 million years, long before dinosaurs existed. How did the ancient Finke River survive dramatic geological changes for so long?

Ants trapped in amber reveal possible partnerships and parasites, offering a rare glimpse into ecosystems from nearly 100 ...