Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Paleontologists ...

Scientists have now discovered the oldest ancestor for all the Australian tree frogs, with distant links to the tree frogs of South America. Newly discovered evidence of Australia's earliest species ...

By retaining urea, the nitrogenous waste compound expelled in urine, this frog prevents water loss via osmosis, which allows it to survive ...

Add Yahoo as a preferred source to see more of our stories on Google. Scientists at the Smithsonian identified a fossilized skull from a 270 million-year-old amphibian, which they've named Kermitops ...

A forgotten fossil sitting in a museum drawer for nearly 100 years has turned out to be a game-changing Ice Age discovery. Scientists have identified a previously unknown extinct spadefoot toad — Spea ...

Fact is that no frog can live by cutaneous respiration for more than a year. Common-sense consensus was that the Ellensburg frogs, actually garden variety, must have climbed into some narrow crack to ...

The species seemed to have bug eyes and a smile, so a team of researchers named it Kermitops gratus in honor of the banjo-playing Muppet. By Michael Levenson One crawled across the rain-drenched ...

Newly discovered evidence of Australia’s earliest species of tree frog challenges what we know about when Australian and South American frogs parted ways on the evolutionary tree. Previously, ...