This video from the USA is called The Precious Sea Otter (original narration by Randall).
(Sep. 7, 2012) — Can an abundance of sea otters help reverse a principal cause of global warming? A new study by two UC Santa Cruz researchers suggest that a thriving sea otter population that keeps sea urchins in check will in turn allow kelp forests to prosper. The spreading kelp can absorb as much as 12 times the amount of CO2 from the atmosphere than if it were subject to ravenous sea urchins, the study finds.
The theory is outlined in a paper released online September 7, 2012 in Frontiers in Ecology and the Environment by lead authors UC Santa Cruz professors Chris Wilmers and James Estes.
“Saving Otter 501” documentary is sea…
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