A research team has created a comprehensive evolutionary tree of all bird species, integrating data from hundreds of studies ...

The mystery of life’s beginnings has long captivated scientists. Central to that search is LUCA—the last universal common ...

Tyrannosaurus rex evolved in North America, but its direct ancestor came from Asia, crossing a land bridge connecting the continents more than 70 million years ago, according to a new study.

Comb jellies "could repurpose [their] genetic toolkit in different ways like a Swiss knife," said the researchers.

The ancestor of the virus that causes COVID-19 left its point of origin in Western China or Northern Laos just several years ...

Life depends on genes being switched on and off at exactly the right time. Even the simplest living organisms do this, but ...

A complete Mixodectes pungens skeleton reveals it was a leaf-eating, tree-dwelling mammal closely related to primates and ...