The federal government will designate more than 10,000 acres in Arizona and New Mexico as prime habitat for the threatened Chiricahua leopard frog. More than a dozen streams and many livestock ...

• Status: Listed as threatened since 2002. • Reasons for decline: Disease, habitat loss, competition from non-native species and drought. • Description: Spotted, greenish with a raised fold of skin ...

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 ...

Dozens of rare relict leopard frogs have been set free in their new habitat at the Springs Preserve. Now it’s up to Raymond Saumure to keep them all from croaking. Saumure is the environmental ...

Long blue tanks sit in a cinderblock building near the employee-only entrance of the Phoenix Zoo. Water percolating in the tanks echoes softly through the room. They appear to be empty until — ...

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 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 ...

PORTLAND, Ore. (KTVZ) — More than 100 northern leopard frogs reared at the Oregon Zoo hopped back into the wild last week, thanks to a collaborative effort to save one of the last remaining Northwest ...

One of Alberta's most at-risk amphibians is making a comeback. Provincial efforts to help northern leopard frog numbers bounce back have been successful in establishing new self-sustaining populations ...