Killer whales are the apex predators of the ocean, having no natural predators, while predating on almost everything else (such as beluga whales, mink whales, humpback whales, dolphins, other killer whales, seals, squid, fish, and birds).
Killer whales are at the top of the food chain in the ocean, with no natural competitors, and they consume almost everything else found there (such as beluga whales, mink whales, humpback whales, dolphins, other killer whales, seals, squid, fish, and birds).