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The Brainliest Answer!
2015-01-29T18:13:55+05:30
Whales are mammals as they maintain a warm constant body temperature and give birth to young ones. These characters are not represented by fishes.
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2015-01-29T18:30:39+05:30
Whales are mammals as they maintain a warm constant  body temperature and give birth to young ones 
 
these characters are not seen fish
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