A mishmash of ancient amphibians and reptiles once swam and hunted prey in an ancient Brazilian tropical lake, a new study finds.
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If an ancient amphibian lost a limb or a tail, it could simply sprout a new one, according to researchers who found fossil evidence of limb regeneration dating back 290 million years.
A "robber frog" with beady, gold-rimmed eyes and a bizarre bat with a record-long tongue are among the menagerie of species discovered during an expedition in Bolivia.
In the wilds of Brazil, researchers have discovered the first frogs with venomous spikes on their heads. Just a gram of this venom could take down tens of humans or thousands of mice.
Each smaller than a thumbnail, seven new species of frog have been discovered in the cloud forests of Brazil. Some have warty coverings while others are smooth with spots.
Frogs are amphibians known for their jumping abilities, croaking sounds, bulging eyes and slimy skin. They live all over the world and are among the most diverse animals in the world.
The inch-long species, scientifically named Hyalinobatrachium dianae, joins Costa Rica's 13 other glass frogs.
With a mobile lab and portable freezer in tow, every time Tracie Seimon boards a plane, she brings hope that the tide is turning against the global scourge that's killing amphibians.
A fingernail-size frog that can morph its skin texture from spiny to smooth in just minutes is the first shape-shifting amphibian ever found, according to a new report.
The "super salamander" with a toilet-seat-shaped head may have perished some 220 million to 230 million years ago alongside hundreds of its kin when its lake home dried up, researchers say.
Researchers have discovered a mass graveyard filled with the bones of a giant amphibian that lived between 220 million and 230 million years ago in what is today southern Portugal.
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.
A new species of frog has hopped onto the radar of researchers in Bangladesh. The frogs were discovered after the researchers noticed their unusual breeding habits, according to a new study.
Its distinctive mating call helps scientists distinguish the creature from already known frogs with which it was often confused.
A deadly new fungal disease that originated in Asia is killing salamanders and newts in Europe and could soon land on U.S. shores, home to the most diverse population of salamanders worldwide.