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.
Transient killer whales prey on marine mammals, and are one of the humpback whaleâs main predators. They attack calves and younger animals more frequently, and most humpback whales have scars as a result of prior orca attacks, including drag marks on their tails.ransient killer whales prey on marine mammals, and are one of the humpback whaleâs main predators. They attack calves and younger animals more frequently, and most humpback whales have scars as a result of prior orca attacks, including drag marks on their tails.