ALL accounts of the metamorphosis of the common frog leave it to be tacitly inferred that when the front legs make their way through the operculum branchial respiration ceases, and that ...

Researchers know frogs were hopping around as far back as 217 million years ago. But exactly how and when they evolved to ...

The wriggling tadpoles hatch with tails and gills to ... Toads are bigger than frogs. Common toads and natterjack toads live in Britain, but they're not the biggest. In South America, cane toads ...

Southern Darwin's frog tadpoles grow up inside the vocal sacs of their fathers and are 'born' through their mouths as froglets. The brooding dads made an incredible 7,000-mile journey by boat ...

Emerging from a partially frozen pond more than 6,000 feet high in the Alps, European common ... eggs and tadpoles to metamorphose into juveniles, known as froglets. Cold-climate frogs grow ...