Beluga whales are considered mammals because they have the characteristics of (almost all) mammals: live birth, suckle their young, etc
A blue whale is a mammal because it has blubber, needs air to survive, and are also Warm Blooded.
they produce their young by birth.
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
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Animalia, phylum cordata, class mammalia
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
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