Mon August 6, 2012
Frogs: The Thin Green Line
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 chytrid fungus.
Airs Wednesday, at 7pm on Channel 5.
Watch the full episode.