For nearly two centuries, a small brown frog living in Southeast Asian rainforests was considered a single, well-understood ...

Mammals are not especially diverse. Roughly 6,800 mammal species are known to exist, compared with about 8,800 species of amphibian, 11,000 species of bird and 12,500 of reptile. Yet when most people ...

A plantation worker photographed this new genus of mammal in New Guinea, thought to have been dead for 6,000 years.

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 ...

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

Genetic analysis of Bornean frogs revealed several distinct groups, suggesting more species may exist than previously believed.

Scientists say Earth could contain billions of undiscovered species, and new DNA tools may accelerate discoveries faster than ever.

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, ...

Image Credit: WSMV 4 Nashville ...

A new study led by researchers at the University of Arizona suggests that for every recognized vertebrate species, there are, on average, two ...

Born in 1809, Charles Darwin proposed the theory of natural selection and helped set the foundation for how modern scientists classify organisms, cementing hims ...