How do scientists monitor the populations of the threatened California red-legged frog? With careful listening and a little ...

Bullfrogs lay between 8,000-120,000 eggs, but typically an average of 20,000 eggs, while native frogs tend to lay many less eggs (e.g., the native red-legged frog lays an average of 5,000).

A native California frog once on the brink of extinction is making an encouraging comeback in Yosemite National Park, raising hopes for amphibians like it worldwide that are dying off at an alarmin… ...

Costa Rican researchers have confirmed they found one specimen of Craugastor escoces, a native frog species known here as the Rana Vientre Rojo (red-bellied frog), last seen here in 1986.. Gilbert ...

The Brazilian chytrid probably first infected native frogs in Brazil, spread to farms, and from there, around the world, the researchers say. [7 Devastating Infectious Diseases ] The trade in ...

What are the cannibal tree frogs? Native to Cuba, the Bahamas and the Cayman Islands, the Cuban tree frog can measure more than 6 inches long, according to the U.S. Geological Survey.

Nevada wildlife officials seized 119 African clawed frogs, which they say are prohibited because they can pose a serious danger to native frogs and entire ecosystems. IE 11 is not supported.

Rachael Wood admits she may have killed an endangered frog, mistaking it for a cane toad. (ABC Coffs Coast: Claudia Jambor)"To think that [native frogs] are being put in freezers or stabbed or ...