Call it a grand-phibian. Scientists have unearthed a fossil of the world’s oldest tadpole in Argentina — a shock finding that could alter our understanding of amphibian evolution, experts say.

Frogs, like butterflies and salamanders, have what is called a "bi-phasic life cycle." They undergo metamorphosis to grow from their larval stage, as a non-reproductive tadpole that swims underwater, ...

Ptychadena nana individuals with green and brown color morphs. Image courtesy of Sandra Goutte. A team of researchers at NYU Abu Dhabi (NYUAD) has uncovered how a common color variation in frogs has ...

Paleontologists working in Patagonia have unearthed the oldest-known fossil of a tadpole—and it was a whopper, measuring in at more than six inches long, the size of an adult human hand. The specimen, ...

The $148,000 award supports collaborative research and community outreach on Pennsylvania’s Devonian fossil record.

Horror frogs are also known as hairy frogs due to the bizarre fleshy filaments the males develop during mating season.

“Dorsal green coloration with irregular brown mottling provides camouflage in moss-covered, dimly lit cave entrances; expanded digital discs enhance grip on wet limestone substrates; and fully webbed ...