Why Would a Trained Orca Kill A Human?

Despite their endearing trained performances for human audiences, killer whales ( Orcinus orca ) in captivity have been known to live up to their moniker. The SeaWorld trainer who was pulled into a tank and drowned by a 5,400-kilogram bull orca Wednesday in Orlando, Fla., was the latest in a string of incidents in the past two decades involving cetaceans that have harmed or killed a person. [More]

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