I think it's because the way our body is formed from the so called, "First humans" on earth. and by that, the first humans have to be warm blooded to keep warm. they didn't have lots of shelter, and so they had to be warm. They did have hair, but they needed more than that. That's how our body works. But it is not important that mammals have to be warm blooded.
Except for Mammals and Aves all other organisms are cold blooded.
White tigers are mammals which are all warm blooded. According to Rick James, certain women may be cold blooded, but that is another matter.
Mammals are warm blooded because we are mammals and we are warm blooded
Mammals are not cold blooded.They are warm blooded.
Birds and Mammals come to mind . . .
there are no cold blooded mammals no there are no cold blooded mammals
The bilby is warm blooded. It is a mammal, and all mammals are warm blooded.
All mammals are warm blooded (endothermic)
they are warm blooded mammals are warmblooded.
Cats are warm-blooded, as cats are mammals, and all mammals are warm-blooded.
Warm blooded. They are mammals, which feed breast milk. All mammals are warm blooded.
No, all mammals are technically warm-blooded.