Would Orcas Dominate Every Prehistoric Ocean?

Would Orcas Dominate Every Prehistoric Ocean? We're going to take a breeding population of orcas into every prehistoric ocean to see if there population will dominate and establish, or if they will get wiped out. Could Orcas Survive Every Prehistoric Ocean? Let's Find Out. 0:00 Intro 0:51 Cambrian 1:53 Ordovician and Silurian 3:41 Devonian 5:43 Carboniferous 7:10 Permian 8:55 Triassic 10:53 Jurassic 13:11 Cretaceous 15:18 Eocene 16:46 Miocene 18:15 Pleistocene Orca, Orca Pod, Killer Whale, Prehistoric Oceans, Prehistoric Ocean, Megalodon, Livyatan, Mosasaur, Pliosaur, Prehistoric Sharks,