Biologists have caught a caecilian, a legless amphibian that can be anywhere from a few inches to 5 feet long. It's the first one found in the US.

For early amphibians, moving from water to land and, for some, back to the water left an impression—on the shapes of animals' spines.

Masses of spotted salamander eggs are either white or clear. New research indicates two dueling evolutionary forces at work.

Skull fossils from a species of extinct amphibians called albanerpetontids shows the oldest-known evidence of a slingshot-style tongue, researchers say.

"We wanted to know, do large frogs have large tadpoles and small frogs small tadpoles, or are the sizes between the two decoupled?'"

Beneath their slick skin, some frog skulls sport spines, spikes, and other skeletal secrets called hyperossification.

After frogs in protected area of Panama died off en masse, the snakes that ate them began to disappear, too. It shows the extent of our "biodiversity crisis."

Scientists thought lowland frogs living in the Peruvian Amazon were safe from the deadly chytrid fungus. A new study shows that's not the case.

An invasive fungus has led to the decline of 501 species of amphibians. Scientists say we're running out of time to come up with a solution.