Spotted seals hear well in and out of water

By Sarah Zielinski, 13:41 PM March 10, 2014

Spotted seals live along the continental shelf in the northern parts of the Pacific, from Alaska to the Sea of Japan. The Arctic hold dangers for the seals: There are polar bears and brown bears on land, and sharks and orcas at sea. On top of that, climate change is destabilizing the region. But the seals appear to be hanging on.

Another threat for many marine creatures is sound — anthropogenic noise created by boats, oil and gas exploration and other human sources. These noises often occur at...

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