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.
Orcas are amongst the world's most feared predators. These marine creatures belong to the Delphinidae family, which comprises different kinds of oceanic dolphins. In fact, the orca is the biggest member of this group. Some of the others include the Pygmy Killer Whale, False Killer Whale, and the Melon-headed Whale.he Spanish sailors called them killer whales because these creatures preyed on different kinds of whales. They didn't even spare the bigger whale species. Killer whales are known to prey on different kinds of sea creatures, irrespective of their size and type.