Beluga whales are considered mammals because they have the characteristics of (almost all) mammals: live birth, suckle their young, etc
Doplphins are mammals. They breathe through lungs and have hair on their body for at some of their live. They also have internal fertilization.
No, sharks and whales belong to different groups. Sharks are fish and belong to the group Chondrichthyes, while whales are mammals and belong to the group Cetacea. They are both classified under the superclass Osteichthyes, which includes all bony fish, but they diverged into separate evolutionary paths long ago.
mammals
Plainly and simply, no... other than whales.
Whales are mammals and must breath air. If they cannot reach the surface to breath they will drown.
Cetaceans, which is further split into Mysticeti, baleen whales, and Odontoceti, toothed whales, which includes dolphins, killer whales, and porpoises
The last I heard Mammals are classified under mammals. Warm blooded, give birth to live young, suckle them.
It is beacouse of their blowholes
Animalia, phylum cordata, class mammalia
what is bubble wrap classified under
Yes, whales are mammals and their entire life is spent under water. Though sometimes they come over water like in the old movie, Free Willy
Mammals don't breathe under water. They hold their breath like you or I would...except their lungs are gigantic and they can hold their breath for hours. No they don't. Whales are mammals and thus need to breathe like most mammals do. In order to breathe, whales have blow holes on their heads. They come up to the surface of the water, bring their blow hole out of the water, open it and take in air, and then go back under water again. No basically.