gigasecond (plural gigaseconds) A unit of time equal to 1,000,000,000 seconds and with symbol Gs. Translations
Orcas are called killer whales due to the fact that they are the top predator in the ocean. They are the hunters, not the hunted. They eat almost anything and everything they â¦ can find including other whales.
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.