Are porpoise related to dugongs

Porpoises and dugongs are not closely related, as they belong to different groups within the animal kingdom. Porpoises are marine mammals in the family Phocoenidae, which are part of the cetacean group that includes whales and dolphins. Dugongs, on the other hand, are part of the Sirenia order, which also includes manatees. While both groups are aquatic mammals, their evolutionary paths diverged millions of years ago.