- Associated Press - Tuesday, October 28, 2014

PHOENIX (AP) - The Pajarito Mountains in southern Arizona have some new residents.

Hundreds of Tarahumara frogs were released in a remote canyon Monday after a 40-year absence of the greenish-brown amphibians.

The Arizona Game and Fish Department, the Arizona-Sonora Desert Museum and the U.S. Fish and Wildlife Service teamed up on the release.

Biologists will monitor the frogs regularly over the next several years.

The frogs can grow up to 4 ½ inches and have small, dark spots on their bodies.

The Game and Fish Department says the frogs had existed in three mountain ranges in Arizona but disappeared from the state in the 1980s. Biologists say severe cold, drought, competition for food, predation, disease and heavy metal poisoning could have factored in to the frogs’ disappearance.


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