23 Aug '11, 2am

Breeding Experts Puzzled by Death of Rare Frogs | Care2 Causes

Breeding Experts Puzzled by Death of Rare Frogs | Care2 Causes

More than 100 endangered mountain yellow-legged frogs have died in a captive breeding program in Fresno, California, the Los Angeles Times reports . The 104 frogs died over the past month after recently metamorphosing from the tadpole stage. Experts are still struggling to figure out what went wrong. “We have two frogs left,” Scott Barton, director of the Fresno Chaffee Zoo, told The Times. “We’re trying to determine exactly what happened.” It is estimated that fewer than 200 mountain yellow-legged frogs exist in the wild. Native to California’s San Bernardino, San Gabriel and San Jacinto mountains, the species’ population has been dramatically affected by loss of habitat and the introduction of nonnative species such as trout, crayfish and bullfrogs. The frogs are also vulnerable to pesticides and fungal infections. The frogs at the Fresno Chaffee Zoo were rescued from th...

Full article: http://www.care2.com/causes/breeding-experts-puzzled-by-d...

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