While Orcas are members of dolphin family (Delphinidae), they are not members of the porpoise family (Phocoenidae) and the whole Orcas are not whales distinctio

While Orcas are members of dolphin family (Delphinidae), they are not members of the porpoise family (Phocoenidae) and the whole Orcas are not whales distinction is kind of silly anyway because they're all cetaceans.