Orca. They’re just too damn cool, and they refuse to eat humans for some unknown reason. They, as a species, literally eat anything else that dares to enter their water including polar bears.

I personally maintain that some Orca took out an elderly or young human at some point, and the villagers responded by wiping out the entire pod of orca except for a traumatized survivor that told the rest of the orcas that they shouldn’t ever eat the angry hairless monkeys, and the species has remembered for tens if not hundreds of thousands of years.