Amphibians

The difference between a frog and a toad is mainly skin-deep. Here's how to tell the amphibians apart.

Hearts have become iconic symbols of Valentine's Day, but when it comes to hearts in the real world, one size doesn't fit all — particularly in the animal kingdom.

Taiwan is racing to contain an outbreak of invasive cane toads, which likely escaped from a black market breeder.

Competition is so fierce Down Under, the invasive cane toad has become a mega-cannibal.

In two new studies, researchers identified more snakes that disembowel frogs to eat their organs, a gruesome habit that was only recently discovered.

A giant tadpole recently found in the wild is bigger than a can of Coke — and it's still growing.

Eat more salad, they said. It's good for you, they said.

The frogs' glowing patterns may be a form of communication.

A nature walk near a reservoir in the U.K. recently took a gruesome turn.

Decades after chrytrid fungus began its deadly rampage through the world's frog populations, a community of tropical frogs has managed to adapt.

A firefly kept right on flashing after being eaten by a frog.

The Asian common toad toxic threat to native species in Madagascar.

Did you know that the late drug lord Pablo Escobar flew kidnapped hippos to Colombia? Or that the African clawed frog Xenopus laevis was once used as a pregnancy test for humans?

Why does this toad have no face?

The Jackson's Climbing Salamander had not been seen since 1975.

In a stunning frog photo recently shared widely from Reddit, a swallowed snake isn't going down without a fight.

Horned frogs' powerful bites hint that an extinct, ancient relative may have packed even more of a mouthy wallop.

The massive extinction that wiped out the dinosaurs paved the way for frogs to explode in diversity, new research suggests.