sea mammal
Whale or dolphin
A sea mammal is any mammal that lives primarily in the ocean—whales, dolphins, seals, sea lions, walruses, manatees, and sea otters.
Like all mammals, they breathe air, give birth to live young, and nurse their offspring, but they've adapted to marine life with streamlined bodies, flippers, and the ability to hold their breath for extended periods.
- humpbackBaleen whale species
- dolphinEcholocating marine mammal
- killer whaleApex ocean predator
- otterSemi-aquatic weasel relative
- dugongHerbivorous marine mammal
narwhal · manatee · porpoise · beluga · fur seal · baby seal · blue whale · ocean giant · harbor seal · sperm whale · deep diver · elephant seal · orca · polar bear · walrus · flipper feet · cetacean · pinniped