The Eiffinger's tree frog (Kurixalus eiffingeri), found on Ishigaki and Iriomote islands in Japan, has a unique biological adaptation: its tadpoles do not defecate during their early developmental ...

Researchers in Australia spotted a magnificent tree frog with blue skin — the result of a rare genetic mutation called axanthism, which suppresses yellow pigments that usually tint the frogs green.

For more than a century, two mysterious tree frog specimens collected by a British naturalist in 1870 and housed at the Natural History Museum in London were assumed to be part of a vanished species, ...