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4 answers

It's part of being warm blooded as opposed to cold blooded reptiles who must moderate their body temperature by finding the right external/environmental temperatures.

2006-09-22 16:39:38 · answer #1 · answered by DrB 7 · 0 0

It varies to keep a normal body temperature of 37 c.

2006-09-23 02:17:59 · answer #2 · answered by FRANKO 2 · 0 0

As a survival mechanism.

2006-09-22 23:35:57 · answer #3 · answered by bruinfan 7 · 0 0

Because you would die if it did.

2006-09-22 23:49:55 · answer #4 · answered by joojoobii 2 · 0 0

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