In the early 1970s， director of training at Sea-Arama Marineworld Ken Beggs claimed that one of the park's orcas， a young male named Mamuk， attempted to bite his torso.

In the early 1970s， young female killer whale Nootka became aggressive towards a visiting reporter at Seven Seas Marine Life Park， beaching herself in an attempt to lunge at him. She had to be returned to her pool with a crane.

In the early 1970s， a trainer at Seven Seas Marine Life Park， Larry Lawrence， was raked by Nootka. He had to receive 145 stitches in his left leg.

On May 2， 1978， another Marineland of the Pacific trainer， 27-year-old Jill Stratton， was nearly drowned when the 10-year-old Orky II suddenly grabbed her and dragged her to the bottom of the tank， holding her there for nearly four minutes.

On May 22nd， 1978， SeaWorld trainer Greg Williams was bitten on the legs by the park's killer whale Winston. He was hospitalized with minor injuries.

In the 1970s， a Marine World California trainer， Dave Worcester， was dragged to the bottom of the tank by the park's young male orca Nepo.

In the 1970s， a Vancouver Aquarium trainer， Doug Pemberton， recalls that，“Skana once showed her dislike by dragging a trainer around the pool. Her teeth sank into his wetsuit but missed his leg.“ Pemberton described both young female Skana and her male panion Hyak II as “moody“ but stated that Skana was the dominant animal in the pool.“She is capable of changing moods in minutes“.

1980s

On February 23， 1984， a 7-year-old female orca by the name of Kandu V grabbed a SeaWorld California trainer， Joanne Hay， and pinned her against a tank wall during a performance. Hay was only released after another trainer jammed a fist into the whale's blowhole.

In November 1986， trainer Mark Beeler was held against a wall by Kandu V during a live performance.

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