Amphibians are cold-blooded animals that can live both in the water and on land. When we think of amphibians, frogs and toads instantly jump to mind. Usually, we think of frogs as being quite small.

Scientists found a huge “aggressive” animal with a “whoop”-like call in Namibia and discovered a new species of frog, a study said. Photo from Louis du Preez As a canopy of stars unfurled across the ...

First there was the invasion of the American crayfish, and now the American bullfrog may be providing a new threat to Dutch native species. Traces of the bullfrog, an invasive species, have been found ...

American bullfrog DNA has turned up not far from the only known habitat of Pithecopus rusticus — a small, critically endangered tree frog that lives in Brazil. These neon green, orange and black frogs ...

Conservation gets complicated when a native U.S. species is appreciated in one part of the country, but despised in another. Consider, if you will, the American bullfrog. “In the Eastern U.S., where ...

Noord-Brabant is on high alert for the American bullfrog after a nature club discovered one of these invasive exotics in a small pond south of Valkenswaard. “The bullfrog is a plague for the entire ...

As a canopy of stars unfurled across the landscape of Namibia, a “golden” creature sat in a shallow pond. The animal’s size and “aggressive” nature made it easy to spot. When scientists found the huge ...