Blue Whales Return to Alaska

Blue whale.  Image credit:  NOAA Fisheries

Blue whale. Image credit: NOAA Fisheries

According to the US National Oceanic and Atmospheric Administration (NOAA), blue whales are starting to return to some of their traditional migratory patterns around the globe.  This has included their return to the waters off the Alaskan and Canadian coasts, locations abandoned for decades.  Whales have been spotted in the Gulf of Alaska and off the coast of British Columbia.  Blue whales used to migrate to this far north area yearly, but this migration ended during the height of whaling & only now returned.  Scientists do not know whether this route vanished from the whales’ collective memory due to the slaughter & has simply been rediscovered.  Another possibility is that the blue whales have been pushed north due to shrinking food supplies caused by warming ocean waters.  For more information, see here.

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