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.

Despite efforts beginning in the late 1990s to remove the bullfrog from Buenos Aires, the Chiricahua leopard frog blinked out from the refuge in 2001, Sigafus said.

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 ...

Upstream, the bullfrog capture events have been conducted in places known to have healthy bullfrog populations such as Corn Lake, Connected Lakes, Audubon Nature Preserve and Snooks Bottom Open Space.