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.
1 Orcas are also called Killer Whales because they are very active hunters. 2  They eat large animals such as fish and marine mammals like seals or even other kinds of whales! 3  Sperm whales are among the few animals large enough to catch and eat giant squid. Orcas are also called Killer Whales because they are very active hunters. 2  They eat large animals such as fish and marine mammals like seals or even other kinds of whales! 3  Sperm whales are among the few animals large enough to catch and eat giant squid.