This extraordinary spectaclewas once common in Eastern Europe, but so many riversnow have...
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This extraordinary spectacle
was once common in Eastern Europe, but so many rivers
now have stabilized banks and are badly polluted that the mayflies
have largely disappeared. But when the rivers are clean,
wildlife is quick to return
was once common in Eastern Europe, but so many rivers
now have stabilized banks and are badly polluted that the mayflies
have largely disappeared. But when the rivers are clean,
wildlife is quick to return
Full Transcript
00:00:01.000 --> 00:00:05.087
This extraordinary spectacle
was once common in Eastern Europe,
00:00:05.588 --> 00:00:08.883
but so many rivers
now have stabilized banks
00:00:08.966 --> 00:00:10.676
and are badly polluted
00:00:10.076 --> 00:00:13.137
that the mayflies
have largely disappeared.
00:00:16.515 --> 00:00:20.811
But when the rivers are clean,
wildlife is quick to return.
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Movie Summary
Documentary series focusing on the breadth of the diversity of habitats around the world, from the remote Arctic wilderness and mysterious deep oceans to the vast landscapes of Africa and diverse jungles of South America.
