A batch of 1,000 rare tadpoles raised at the Phoenix Zoo landed in a new home at the Grasshopper Tank in the Tonto National Forest, part of ongoing efforts to boost the population of the threatened ...

After years of failed attempts, a cohort of Oregon Zoo-reared northern leopard frogs has finally survived through the winter at the Columbia National Wildlife Refuge in eastern Washington. “We’ve ...

Alan Zhou / OPB Plans to develop a new population of endangered frogs are hopping along in Eastern Washington. This month, nearly 100 northern leopard frogs reared at the Oregon Zoo were released into ...

Aug. 17—Washington wildlife managers released hundreds of endangered northern leopard frogs into Washington's channeled scablands Tuesday evening. About a dozen of those frogs were outfitted with ...

The relict leopard frog’s journey into Southern Nevada’s landscape has seen its share of challenges. Clark County and the Nevada Department of Wildlife spent about five years trying to get the rare ...

They look as if they were painted by hand. The rare Northern leopard frog and its cousin, the pickerel frog, are both so vividly colored that they look as if they belong in a tropical rain forest.

TUCSON, Ariz.— Cattle have caused immense damage to critical habitat designated to help threatened Chiricahua leopard frogs recover throughout four national forests in Arizona, based on field surveys ...

Months of old-fashioned scientific fieldwork - more than 2,000 surveys of chirping frog calls, hundreds of photos of individual frogs and tiny tissue samples taken from them - has helped define the ...

Even now, many decades removed from me being a child, I can remember the sights and sounds of my excursions into the natural world. These excursions were usually centered around water, a true ...

The Phoenix Zoo recently released 1,000 tadpoles into the Tonto National Forest, part of a program to save the threatened Chiricahua leopard frog. The zoo collects eggs every year, and those eggs ...