The gigasecond (Gs) is a unit of time in the International System of Units, defined as 109 seconds using the SI prefix system.
John Hargrove, who spent 14 years as an orca trainer, mostly at SeaWorld, says there was no doubt that the whale was aggressive. And the reason for whales' aggression, he says, is that they're held captive.Hargrove eventually became disillusioned with SeaWorld's treatment of orcas and left the company.ohn Hargrove, who spent 14 years as an orca trainer, mostly at SeaWorld, says there was no doubt that the whale was aggressive. And the reason for whales' aggression, he says, is that they're held captive.
For centuries, orcas have instilled fear in the hearts of mankind. In all their ferociousness, they've been dubbed wolves of the sea, whale killers, killing demons and fish tigers, to name a few [source: National Geographic, PBS ].here are plenty of depictions of people-friendly orcas, such as the movie Free Willy and SeaWorld's Shamu. So what did the orca do to get this frightening name? If you've ever seen the 1970s movie Orca, the Killer Whale starring Richard Harris and Bo Derek, you may already have an idea.