Question:
why whales r kept under the class mammals why not under the two classes ( chondrichthyes or osteichthyes) of super class pisces.after all pisces include fishes only right.
Answer:
Although whales and fishes both live in water, this is the only way in which they are same. There are a magnitude of feathers which determine the difference between a fish and a whale.
Whales give birth to young ones which are geted inside a womb of animal from the moment of fertilization.
Fish are cold blooded while whales are warm blooded. Whales breath in air. They have similar features as humans, therefore classified in mammals.
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