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.
The animal world is full of amazing creatures, but they're not all safe. While these predators may or may not be very dangerous to humans, they are undoubtedly some of the most terrifying animals in the world. Orca. The orca is an apex predator, which means they have no natural predators. Orcas feed on walrus, sea lions, seals, and other large sea creatures. Since they are also known as killer whales, orcas gained a reputation for violence among humans, but they've only ever attacked people a handful of times.