Answer:
Oceanic dolphins are aquatic mammals, members of the family Delphinidae which is part of the infraorder Cetacea.
They are closely related to whales and porpoises which are also cetaceans.
Oceanic dolphins are aquatic mammals, members of the family Delphinidae which is part of the infraorder Cetacea.
They are closely related to whales and porpoises which are also cetaceans.