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PBS - Ocean Adventures: Sea Ghosts (2008)

Posted By: Tutorial

Date: 12 Apr 2016 01:14:20

There are places on this planet where it is a marvel that anything survives.

But in the cold Arctic waters of the far north, the sea is alive with sound. The canaries of the sea are singing. They are beluga whales, named from the Russian word for white ones. Belugas are an evolutionary surprise a warm-blooded mammal in a numbingly cold sea. Resembling curious ghosts, these intelligent mammals use one of the most complex sonars of any animal.Belugas inhabiting Cook Inlet, close to Anchorage, were added to the list of endangered species in October 2008. The National Oceanic and Atmospheric Administration stated that a decade-long recovery program had failed to ensure the whales survival. The relationship between people and belugas is ancient. For more than 4,000 years, hunters of the north have depended on these whales for their own survival in a land with little to offer. These traditional cultures have now partnered with scientists and modern technology to protect the beluga, which in turn, ensures their own future. Yet these efforts are only a small part of the story as new discoveries have raised troubling questions about the health of belugas and their long-term survival.Their world is now ground zero for climate change, and what threatens them is not confined to the Arctic, it's global. What lies ahead for the beluga could become prophesy for many species everywhere, including our own.

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