Birds are the most diverse land vertebrate on the planet, and now scientists have constructed a complete evolutionary tree of the 11,000 or so known species. This data came from hundreds of studies ...

Properly deciphering the branching pathways of evolution could unlock the history of every component of natural biology.

Birds are the only dinosaur lineage that survived until today. About 66 million years ago at the Cretaceous–Paleogene (K–Pg) boundary, a mass extinction event destroyed all non-avian dinosaurs, ...

Researchers have run through near-perfect fossils of the world's first gliding reptile with a fine-toothed comb and untangled hitherto unknown facets to discover it was a change in tree canopy which ...

Long known as a messenger within cells, RNA is increasingly seen as life’s molecular communication system — even between organisms widely separated by evolution. For a molecule of RNA, the world is a ...