Charles Darwin worried that the fossil record looked strangely abrupt, with complex animals appearing in a geological instant ...

About 445 million years ago, Earth nearly wiped out life in the oceans. Glaciers spread across the supercontinent Gondwana, ...

The missing link in the mystery turned out to be an event called the Cambrian explosion. It was only after it that living ...

Sponges are among Earth's most ancient animals, but exactly when they evolved has long puzzled scientists. Genetic ...

The oldest fossilised remains of complex animals appear suddenly in the fossil record, and as if from nowhere, in rocks that ...

Jawbones and other remains, similar to specimens found in Europe, were dated to 773,000 years and help close a gap in ...

Some 445 million years ago, life on Earth was forever changed. During the geological blink of an eye, glaciers formed over ...

Creepy collector she is not; Cooke's quest for canines, incisors, and molars is driven by a desire to better understand Earth's past. Give this intrepid paleontologist a fossilized tooth, and there's ...

Beginning with a recently discovered 47-million-year-old primate fossil, Switek effectively and eloquently demonstrates the exponential increase in fossils that have been found since Darwin first ...

The earliest feathered dinosaurs may have evolved their bird-like features while still retaining lizard-like scales on other parts of their body. This theory is based on the discovery of a fossilized ...

Fossilized bones and teeth dating back 773,000 years, discovered in Morocco, provide insight into early human evolution.

The fossil record of baleen whales (Mysticeti) offers a window into one of the most dramatic evolutionary transitions among mammals. Early cetaceans evolved from terrestrial artiodactyl ancestors into ...