Scientists have discovered an ancient amphibian ancestor that lived 270 million years ago and named it in honour of the iconic Muppet character Kermit the Frog. The extinct species, which has been ...

Most everyone recognizes frogs. Frogs, like salamanders and newts, are amphibians. Unlike salamanders, they have made a major evolutionary detour from the body plan of their ancient ancestors. The ...

Researchers at the University of Bristol discovered that ancient frog ancestors survived the biggest mass extinction of species by eating on freshwater prey that evaded terrestrial predators.

DESCRIPTION: The relict leopard frog is a small, spotted frog with an adult body length of 1.75 to 3.5 inches. The dorsal color is brown, gray, or greenish with greenish-brown spots. A glandular dorso ...

Meanwhile, recent genetic analysis indicates that the highly imperiled Ramsey Canyon leopard frog (Rana subaquavocalis) is indistinguishable from the southern form of Rana chiricahuensis and will ...