Remember the gray whale that was recently spotted off Israel? Its sighting was huge news because gray whales haven't been seen in the eastern hemisphere since at least the eighteenth century; the only gray whale populations remaining in the world are in the Pacific Ocean. The likeliest explanation for the whale's appearance in the Mediterranean was that, during a summer feeding season north of Alaska, it somehow made its way through either the Northeast or Northwest Passage before turning south into the Atlantic.

Well, the whale has been spotted again.

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