Have you ever wondered how city life affects animals like frogs? A new study reveals that urban Túngara frog tadpoles develop ...

African bullfrogs (Pyxicephalus adspersus) are large frogs that live across sub-Saharan Africa and prefer areas where water is plentiful and fresh. These monster frogs can be found anywhere with ...

A California bullfrog waits for his turn to compete during the annual frog jump competition at the State Capitol in Sacramento, California, Monday, April 30, 2013. (Randy Pench/Sacramento Bee/MCT) ...

Get to know the American bullfrog, the giant amphibian with the bull-like bellow, and one of North America’s most widespread frog species.

The American bullfrog and the leopard frog were once the only options for frog keepers, but now there is a far wider variety of frogs to choose from. With the success of captive breeding programs ...

But Twain’s frog — which experts agree was likely the native California red-legged frog, not a bullfrog — bore little resemblance to contemporary competitors.

Scientists found huge “aggressive” animal with “whoop”-like call in Namibia and discovered new frog species: Beytell’s bullfrog, study said.

We normally see a bullfrog as green because of the structural blue plus the presence of a yellow pigment. When the structural blue (i.e., the reflected wavelength) in a frog combines with its ...

Turquoise bullfrog in Yamhill County is likely an unusual color because the frog's skin lacks a gene for yellow. Victor Berthelsdorf “They’re really pretty, actually,” Berthelsdorf said.

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 ...