View Related Episode: Disappearing Frogs, Eel Harvest, Hidden Columbia River
Many species of amphibians such as the spotted and cascade frogs and the western toad are disappearing in Oregon and may soon be extinct. Scientists suspect that environmental factors, such as the depleted ozone layer and higher levels of uv radiation may be contributing to their decline.
First Broadcast: 1993
Producer: Eric Cain
Appeared in episode: Disappearing Frogs, Eel Harvest, Hidden Columbia River
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