Thousands of fossilized bones from a Cretaceous-period bonebed in Wyoming, the United States, offer rare physical evidence that Tyrannosaurus rex fed on...
A new genus and species of lambeosaurine hadrosaurid dinosaur has been identified in southern Alberta, Canada, dating back 77 million years to the Campanian...
New research suggests that the first widespread human cultures in the Americas were not opportunistic foragers who ate whatever they could find, but specialized...
For decades, the discovery of stone spear points lying next to proboscidean (mammoth, mastodon, and gomphothere) bones has been treated as archaeology’s...
A nearly complete skull unearthed decades ago in Arizona has given paleontologists their clearest look yet at Adelphailurus kansensis, an enigmatic felid...
Fossils from the Jose Creek Formation in New Mexico reveal that angiosperms (flowering plants) had built dense, fruit-bearing forests nearly 75 million...
Paleontologists from the Field Museum of Natural History have described the fossilized remains of baby embolomeres, crocodile-like predators that prowled...
Paleontologists have identified a previously unknown species of amphicyonid — the extinct family of carnivorous mammals popularly known as bear-dogs...
The extinct Eurasian cave lion (Panthera spelaea) and today’s African and Asian lions (Panthera leo) belong to separate evolutionary lineages that diverged...
Paleontologists have identified a new species of the axolotl genus Ambystoma from several fossilized specimens found deep in the rocky outcrops of the...
A new species of corcoraniid arthropod that lived during the Furongian epoch, between 497 and 487 million years ago, has been identified from an exceptionally...
By studying fungal microfossils in 66-million-year-old rock samples from the Denver Basin in Colorado, Johns Hopkins University microbiologists have confirmed...
Paleontologists have described a new species of bipedal shuvosaurid archosaur from New Mexico, shedding light on a group of creatures that roamed North...
Paleontologists in Canada say they have recovered a dinosaur tail vertebra from 75- to 80-million-year-old marine rocks on a small island off the coast...
A large tyrannosaurid dinosaur may have stalked the floodplains of what is now New Mexico nearly 74 million years ago, according to a team of paleontologists...
Fossils of a giant tortoise, a ground sloth, a lion-sized armadillo relative called pampathere, scimitar-toothed cats, horses, camels and mastodons found...
Earth experienced extreme climate swings during the Neoproterozoic epoch (one billion to 538.8 million years ago), including the Sturtian glaciation, when...
A study of radiation fog events over Pennsylvania has found that bacteria living inside fog droplets are actively growing and feeding on toxic chemicals...
