Add Yahoo as a preferred source to see more of our stories on Google. After an ancient extinction killed about 85% of marine species, survivors in isolated refuges helped jawed vertebrates diversify ...

An in-depth analysis reveals that for each identified vertebrate species, there may be two others, nearly identical in appearance but genetically distinct. Scientists have long classified ...

Scientists have uncovered new clues about some of Earth’s earliest fish, shedding light on the ancient origins of vertebrates ...

Every mammal, every fish, every vertebrate (creatures that have a spine) has two eyes. It’s been that way for millions and millions of years. But maybe it wasn’t like that forever. During the Cambrian ...

A harlequin poison dart frog (Oophaga sylvatica) is pictured at the Tesoros de Colombia (Treasures of Colombia) sustainable farm in Nocaima, Cundinamarca department, Colombia, on July 9, 2024.

Scientists have revealed new details about ancient fish more than 400 million years old, which became the ancestors of ...

A feeding method of the extinct jawless heterostracans, among the oldest of vertebrates, has been examined and dismissed by scientists, using fresh techniques. A feeding method of the extinct jawless ...

Artist’s reconstruction of the oldest known vertebrate's four eyes. (Xiangtong Lei & Sihang Zhang via SWNS) By Dean Murray Ancient fossils reveal the oldest known vertebrates had four eyes. Remarkably ...

Researchers report February 15 in the journal Cell that ancient viruses may be to thank for myelin—and, by extension, our large, complex brains. The team found that a retrovirus-derived genetic ...

The aptly named resplendent quetzal is prized for its plumage. Golden poison frogs are popular creatures in the pet trade. Pangolin meat is considered a delicacy, and their scales are used in ...