by 
Meleggles
ANSWERS: 1
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Yes, some cold-blooded creatures do develop fevers, in a neat way. They can’t control their body temperatures with internal mechanisms as we do. So, lizards, for example, deliberately move into the Sun to raise their body temperature and thus create a fever when they have an infection. They usually get well, then. Moreover, if we stop them from basking, they will likely die. Fevers help the body fight infection. The immune system gets more active when it’s warmer because chemical changes quicken with higher temperatures. We can’t tell if a cold-blooded animal has a fever by detecting a raised temperature. Its body is always the temperature of the air around it or maybe the rock it’s basking on — never elevated. Cold-blooded animals aren’t really "cold blooded". Some lizards, in fact, have a higher normal body temperature than some mammals. "Cold-blooded" animals get their heat from outside their body and don’t produce it internally. If we pick up a snake on a hot day, it feels warm, not cold. One sunning itself to produce a fever feels the same — warm. http://www.wonderquest.com/appendix-light-fever.htm#fever
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