Many spend the summer in the sea, but when winter approaches,they swim up the rivers,...
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Many spend the summer in the sea, but when winter approaches,
they swim up the rivers, which are relatively warm
they swim up the rivers, which are relatively warm
Full Transcript
00:00:01.000 --> 00:00:03.252
Many spend the summer in the sea,
00:00:03.836 --> 00:00:07.047
but when winter approaches,
they swim up the rivers,
00:00:07.131 --> 00:00:08.674
which are relatively warm.
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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.
