cannibalistic lobsters

First, rising sea temperatures brought on by global warming are encouraging the crustaceans to grow quicker and reproduce more often, says Noah Oppenheim, a marine biology graduate student at the University of Maine.

Second, Oppenheim tells Mother Jones, over-fishing has rid the ocean of the lobster’s natural enemies, which include cod, herring, and other fish.The result is a lot of lobsters that have nothing eat — which is why, as footage taken by Oppenheim shows, they have resorted to cannibalism.
TheWeek.com, 24 Jul 2013

thanks to Russell Cook