The denizens of the Middle Island wetlands may have short spring migrations, but it's still a perilous journey.

Hairy frogs spend most of their lives on land, but they lay their eggs in shallow water. The males of the species notably ...

Ancient frog relatives survived the aftermath of the ... unstable resource availability on land. The end-Permian mass extinction event, 252 million years ago, was the largest ever, marked by ...

The species in this group include frogs, toads, salamanders ... and spend the rest of their lives on land. This process is known as metamorphosis. Like reptiles, amphibians are cold-blooded.

Revealing the most interesting or memorable behaviour of any of the multitude of smaller animals without backbones – whether on land, in the air ... with both faces in focus. This tiny frog, less than ...

TUCSON, Ariz.— Cattle have caused immense damage to critical habitat designated to help threatened Chiricahua leopard frogs recover throughout four national forests in Arizona, based on field surveys ...