Longest mammal migration raises questions about distinct species

Longest mammal migration raises questions about distinct species
Newport OR (SPX) Apr 17, 2015 - A team of scientists from the United States and Russia has documented the longest migration of a mammal ever recorded - a round-trip trek of nearly 14,000 miles by a whale identified as a critically endangered species that raises questions about its status. The researchers used satellite-monitored tags to track three western North Pacific gray whales from their primary feeding ground off R ... more

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