Early jawless fish were likely to have used bony projections surrounding their mouths to modify the mouth's shape while they collected food. Experts have used CT scanning techniques to build up the ...

These days, all fish have teeth. The shapes of their teeth vary according to diet, ranging from the little pegs of goldfish ...

From genetics alone, scientists can now predict how long any of myriad different creatures can live. The “lifespan clock” estimates vertebrate animals’ (those with a backbone) longevity — including ...

Gathering vision data for hundreds of vertebrates and invertebrates, University of Arkansas biologists have deepened scientists’ understanding of animal vision, including the colors they see. The ...

A huge virtual gallery of museum skeletons is fully open for viewing. A large group of scientists has painstakingly created 3D reconstructions of thousands of vertebrate specimens, which are now ...

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 ...

Greenland sharks are the longest-living vertebrate species on the planet. One study found that they could live nearly 400 years. These Arctic sharks can reach lengths of up to 24 feet and can weigh ...

After losing its original eyes, one of our distant ancestors may have done what evolution does best: tinkered with what was available, reshaping a single central visual organ into two new eyes. That’s ...