Killer Pilot Whale

Killer pilot whales are future whales that are descended from long-finned pilot whales that got stranded in the Mediterranean seas without any killer whales (orcas) around to hunt them. They fill a similar niche to main-ocean's killer whales, hence their name. They are much bigger than their ancestors, being 7 feet longer and 2.6 tons larger than today's orcas, making them the largest inshore predatory whales in existence. They mainly feed on fish, squid, sharks, otters, future European descendants of escaped penguins, other seabirds, dolphins, porpoises, seals, sea lions, walruses, and among others. They are much more aggressive than their ancestors, being more aggressive and less social than today's orcas, making them big danger towards any animal that goes into their territory.

Evolution
After humans became extinct, life still continues in many species worldwide. When the pilot whales spread into the Mediterranean sea, the landbridge between Africa and Spain formed over time, eventually trapping the pilot whales inside the Mediterranean sea. Eventually, the pilot whales had found no competition from killer whales and had found abundance of food items. They had grown much bigger and became very predatorial. They had become faster, agile, and even much more aggressive than their ancestors. The long-finned pilot whales in the Mediterranean sea had evolved into killer pilot whales.