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 ...

The origin of turtles has always been a bit of a puzzle for scientists who study the evolution of animals. To this day, where ...

A discovery hidden inside 520-million-year-old rocks has solved an evolutionary enigma and could even rewrite the entire tree ...

The three-dimensional shape of a protein can be used to resolve deep, ancient evolutionary relationships in the tree of life, according to a study in Nature Communications. It is the first time ...

In evolutionary biology, all life on Earth is theoretically part of a single phylogenetic tree, indicating common ancestry.

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, ...

How do scientists study and classify life-forms? How can we understand the complex evolutionary connections between living organisms? Woese's breakthrough was momentous for at least three reasons.

Evolution is perhaps the most extraordinary story ever told—a tale spanning billions of years that connects every living thing on Earth through an intricate web of shared ancestry. From the tiniest ...