Cetaceal

Cetaceal (Pinnourosaurus arcticus) is an arctic species of amphibious cetacean part of the once-dominant group of whales known as Basilosauridae. The ancestors of cetaceals were probably small relatives of Basilosaurus, with similarily-shaped elongated bodies (unlike Dorudons), that, over time, hunted land-based prey, until they became more adapted to crawl on land, in a fashion similar to seals, hence their species' name. The cetaceals have blubber and have re-evolved fur, unlike their fully-aquatic ancestors, from their distant land-dwelling pig-like or wolf-like ancestors for protection against the freezing temperatures of the Arctic Ocean. The cetaceals mainly feed on fish, squid, crustaceans, and, unlike most other whales, jellyfish (due to the cetaceals' tolerance to the venom of jellyfish). The cetaceals are very intelligent, about as smart as seals and sea lions, and are very friendly towards humans and may accept handouts from humans (if it's natural food such as fish). The conservation status of the cetaceals is Least Concern due to successful conservation efforts, and they are really tolerant to climate changes, so they may adapt to the warmer climates. The cetaceals are a very common sight in zoos, safari parks, and aquarium parks due to being able to adapt to life in captivity, and they are very easy to breed too from human help.