Bottlenose Dolphins are attacking and killing Harbor Porpoises along the California Coast
Six Harbor Porpoises have washed ashore in a little over a month. 50 Harbor Porpoises have probably been killed since by Dolphins along the California Coast since 2005. It is possible the number is much larger. The why is not really known. One possibility is the culprits are sexually frustrated fighting to control territory.
Read more at SF Gate : ‘Porpicide’: Bottlenose dolphins killing porpoises.
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