Field crews in Wyoming uncovered not one but four snake fossils so intact that their skulls, ribs, and tails lay in ...

Trees get most of the love, but diatoms, a group of photosynthetic microalgae, produce 20% of Earth's oxygen and are the ...

Research finds diatoms evolved slowly for 100 million years and then experienced an evolutionary burst of speciation 170 million years ago.

Scientists dated a Scottish fossil, Westlothiana, to 346 million years ago, revealing its role in early land animal evolution ...

The Chicago Archaeopteryx provides rare 3D insights into skull evolution, soft tissue structure, and the first evidence of ...

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 ...

That picture (below) comes in the form of a “timetree”—a phylogenetic tree that not only shows how species are related, but also when each split occurred in evolutionary history. The idea is ...

We know this because of a biological tool called the tree of life. This "tree" takes ... actually occur," said Ian Barnes, a molecular evolutionary biologist at the Natural History Museum in ...

The new family tree is breaking new ground in the long journey to unravel the mysteries of bird evolution. According to this updated bird family tree, a group containing flamingos and grebes ...

Just as bird watchers may use binoculars to add to their species lists, scientists interested in bird evolution may use computational tools to clarify avian lineages. Indeed, such tools have ...