Guenther’s marsupial frogs have a full set of teeth, defying evolutionary theory. This adult specimen, small enough to fit in your palm, is from the University of Kansas Museum of Natural History.

The marsupial frog G. guentheri didn't have lower teeth, then "boom, around 5 to 15 million years ago, it got them ... ," said John Wiens, who authored a recent study on the phenomenon.

Do frogs have teeth? Only one species of frog known to science has true teeth on both the upper and lower jaws. It’s a large marsupial frog, Gastrotheca guentheri, and it was first described ...

There are hundreds of species of frog in the world, each with unique and wondrous features that set it apart from others like it. Some of those frogs are, unfortunately, endangered, and it’s ...

In a new study, biologists laid to rest a century-old debate by confirming that a single species of frog, out of the more than 7,000 living today, has true teeth on its lower jaw.

The marsupial frog, which incubates its young in a pouch on its back, was thought to be extinct in some countries. Skip to main content. Search Shop Newsletters Renew Give a Gift Subscribe.

Thylacosmilus, or the 'marsupial sabertooth', had wide-set eyes that didn't match with ambush hunting, yet it somehow found a way to thrive. Search for: Science ...

With two massive canines, an L-shaped jaw, and a pouch to carry its young, the saber-toothed marsupial Thylacosmilus atrox sounds like an evolutionary Madlib. But researchers have now described an ...

The horned marsupial frog is an amphibian species endemic to Central and South America. The frog can be found in Costa Rica, Panama, and Colombia with a small population in Ecuador.