A 2006 video that was just released shows killer whale Kasatka holding an experienced SeaWorld trainer underwater.
The orca was trying to send the trainer a message about her calf, according to David Kirby, author of "Death at SeaWorld." Her calf was being held in the back pool while Kasatka was performing in the show.
"When Kasatka would hear her calf calling for her from the back pool she would break from control," Kirby explains. "Any intelligent mother wanting to be with her calf and comfort her calf would try to make her distress known to the people she works with."
Anderson asks Kirby why it's okay to take these animals out of the wild and put them in a small pool given their size.
"Kasatka was captured from Iceland when she was quite young," Kirby says. "These animals tend to stay with their families their entire lives. They have very tight bonds with each other and when we separate them... some of them, not all, are going to have moments of aggression."
Cal/OSHA issued a scathing report on the attack and gave several recommendations to prevent it from happening again. They warned SeaWorld that it was only a matter of time before somebody died. Four years later, in 2010, trainer Dawn Brancheau died after an attack.
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