Orcas or killer whales eat Squid, fish, seals, penguins, whales and more. They are one of the most powerful preditors. They hunt in deadly pods and when there is a seal on a ice burge they create a wave to wash it off. Though they often frequent cold, coastle waters, orcas can be found from the polar regions to the equator. there weight go's up to 6 tons (5,443 kg). Its nearly as big as a bus. did you know orca adult chuck there food back up on to the ice so the young ones can try and do what there parents have tought them. the killer whale got its name because it is really an Orcinus which is a member of the dolphin family. But since the Orcinus would kill whales to eat, the spanish called it 'whale killer' otherwise known as the killer whale.