While it’s impossible to study the now extinct creatures in real life, scientists estimated their bite force by studying ...

Kernan, Knowable Magazine An armored mist frog warms itself on a wet rock. Once thought extinct, this species was ...

The handy thing about having living relatives of extinct giants is that you can look to their behaviors for some idea of how ...

The Jambato harlequin frog has been teetering on the edge of extinction for decades. Here’s a ... [+] close-up look at this impressive amphibian–as well as two of its extinct relatives.

They’re even more ancient than the Himalayas, having formed when the prehistoric continent Gondwana broke up. The lineage of the purple frog makes it a “living fossil”—it’s been thriving ...

Frogs trapped in amber for 99 million years are giving a glimpse of a lost world. The tiny creatures have been preserved in sticky tree resin since the end of the Age of the Dinosaurs. The four ...

the so-called "devil frog," may be the largest frog that ever lived. These beach-ball-size amphibians, now extinct, grew to 16 inches (41 centimeters) in length and weighed about 10 pounds (4.5 ...

But today these hardy survivors of freezing, high-elevation winters are vulnerable to a host of modern threats. In fact these frogs are extinct in more than 93 percent of their old mountain homes. The ...

The relict leopard frog has the dubious distinction of being one of the first North American amphibians thought to have become extinct. Although the species was known to have inhabited more than 60 ...

investigations into the various finds are still ongoing. "Until then, this will remain a prehistoric frog mystery," archaeologists said.