Science news articles about 'leopard frogs'

The northern leopard frogs that inhabit the boreal U.S. have never recovered from some catastrophic population declines in the 1970s. Some blame it on the acidifying lakes and streams caused by coal- ...

... are in decline, and scientists have not been able to figure out why. Now a study of leopard frogs in Pennsylvania has identified a possible culprit, and the ramifications are troubling, according to ...

PHOENIX, May 13 (UPI) -- More than 1,000 Chiricahua leopard frog tadpoles are getting a safe start in life in the Phoenix Zoo.

... '05), created simulated ponds from 300-gallon outdoor tanks containing wood frog ... caused by malathion deprived a large fraction of the leopard frog tadpoles of the nutrients they needed to metamorphose ...

... leg development -- 40 percent of the emerging frogs became deformed, said CU-Boulder Assistant ... schoolchildren discovered a pond where more than half of the leopard frogs had missing or extra limbs, he ...

... of South Florida (USF) and colleagues revealed that chemical pollution can increase often deadly trematode (parasitic flatworm) infections in the northern leopard frog, a declining amphibian species.

... testing, Relyea said. His results showed that endosulfan was not only highly toxic to leopard frogs, but also that it served as the linchpin of the pesticide mixture that eliminated the bulk of ...

... four days of being moved, up to 97 percent of leopard frog tadpoles perished along with up to 50 ... , while the same amount killed all green frog and bullfrog tadpoles. The endosulfan findings build on ...