Researchers have discovered the oldest known example of a predator-prey “arms race,” based on their study of ancient fossils.

An international team of scientists has uncovered a fascinating piece of the evolutionary puzzle: how the ventral nerve cord, ...

A study led by researchers at the American Museum of Natural History presents the oldest known example in the fossil record ...

Called gorgonopsians, the earliest animals in this lineage have long been missing from the fossil record. But the discovery of a newly identified gorgonopsian — the oldest saber-toothed animal ...

Gorgonopsians are the first group of tetrapod predators we know of in the fossil record to evolve saber-tooth characteristics—i.e., very large, blade-like, serrated canines. The Mallorca ...

Although more than half of all animals are ecdysozoans, scientists have long grappled with the lack of evidence of ecdysozoan ancestors in the fossil record, despite molecular evidence suggesting ...

George and her colleagues found that this dance between the two junipers coincided with long periods of drought and warm, dry weather that would otherwise be hidden in the fossil record.

However, our understanding of the rise of the pterodactyloids had been based almost exclusively on the fossil record of the Northern Hemisphere, with precious few specimens having been identified ...