Name: Watch Frogs: The Thin Green Line
Uploaded: 2009-04-05
Duration: 60 min
Description: An examination of the extinction threat faced by frogs, which have hopped on Earth for some 250 million years and are a crucial cog in the ecosystem. Scientists believe they've pinpointed a cause for the loss of many of the amphibians: the

Frogs: The Thin Green Line

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