These very elusive creatures look like something out of a fairy tale, but they are difficult to study.

Earth is home to millions of species, yet a handful now exist in such low numbers that biologists can name individual animals. Illegal trade and shifting ecosystems have pushed them to the brink.

Husband and wife fishing duo Cole & Jay venture into a newly dried lake bed to explore and uncover some of the deadliest and ...

The arctic fox completely swaps its dark summer coat for a snow-white one when winter is coming. The kidney garden spider looks just like the Pringles man. And the world's cutest sheep can be found in ...

The adult male fox was evaluated by veterinarians and released three days later into the Laguna Colombia State Reserve, where conservationist Rafael Chacón snapped additional photos. Rafael Chacón ...

Scientists have long posited that the earliest water animals to transition to land had amphibious tadpole features, going ...