How US nuclear tests in the '70s led to today's thriving otter population on the Pacific west coast

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A light colored Sea Otter floating on it's back in green colored water.
Sea otters had disappeared from Washington, Oregon, and other parts of the US until scientists relocated them to save them from a nuclear weapon test.

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An orca mysteriously died thousands of miles from home after swallowing 7 sea otters whole

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Two otters cling to each other in the ocean.
Otter populations in the Commander Islands have been decreasing in recent years.

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