Scientists are increasingly worried we may be witnessing the start of the "sixth mass extinction"—the first to be caused by human activities. Five earlier mass extinctions, caused by dramatic but ...

An Illinois fossil was reclassified as Jeanerpeton mazonensis, revealing diversity among early amphibian relatives 309 ...

For the more than 242 million years that lizards and snakes appear in the fossil record, they show up mostly as pieces of lizard jaws and snake vertebrae. Exactly why these parts survive as fossils ...

Researchers have made a significant find with the identification of Vizellopsidites miocenicus, a previously unknown fungal ...

Ancient fossil beans about the size of modern limes, and among the largest seeds in the fossil record, may provide new insight into the evolution of today's diverse Southeast Asian and Australian ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. About 50 million ...

A Tyrannosaurus rex fossil billed as one of the world’s largest and most complete specimens sold for a record $50.1 million Tuesday. Sotheby’s said the 67-million-year-old fossil, nicknamed “Gus,” is ...

Fossils are windows to the past. Whether they formed from the bones of ferocious dinosaurs or their less-impressive waste products, they provide essential information about the world millions of years ...