For some whales, sonar may provoke suicidal behaviour: study

Scientists have long known that some beaked whales beach themselves and die in agony after exposure to naval sonar, and now they know why: the giant sea mammals suffer decompression sickness, just like scuba divers.

First underwater video footage of the True's beaked whale

The True´s beaked whale is a deep-diving mammal so rarely seen that it often defies recognition at sea by researchers. As a result, we have little data about its distribution, abundance and calving rate - information essential ...

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