Scientists may have been dramatically undercounting the number of vertebrate species on Earth. A large analysis of more than 300 studies suggests that for every recognized species of fish, bird, ...

New genetic research suggests a common Southeast Asian frog long believed to be one species could actually be six or seven distinct ones.

Scientists analyzing Bornean fanged frogs found what was once thought to be one species may actually be several genetically distinct species.

Earth’s vertebrate diversity may be far richer than anyone realized. A sweeping analysis of more than 300 studies suggests that for every known fish, bird, reptile, amphibian, or mammal species, there ...

Lost fossils reveal that some of the first ocean predators went global astonishingly fast after Earth’s worst extinction.

In official materials, the Bean Chick Pokémon is described as “lively but clumsy.” From behind, it looks fluffy, so he’s ...

The Panamanian golden frog, which has almost disappeared due to a deadly fungal disease, has begun to return to its natural habitat for the first time in 17 years. International scientists and ...

This newly discovered reptile ran like a greyhound — and its name is a tribute to the scientist’s high school teacher.

A new study has uncovered how strange amphibians that once lived in north-western Western Australia became early evolutionary ...

Scientists surveying an Iranian canyon at night found a wide-eyed surprise - a brand-new species of spiky gecko.