Five Moon Beetle This beetle lives in the deepest deserts to the point where it is not far off the largest creature that could conceivably survive out there. The beetle has various chemicals in its body, which when mixed together cause a powerful endothermic reaction, cooling the beetle. The glands that remain shut most of the time, closed through a valve system. When the beetle's body temperature rises over a certain point, the heat causes these 'valves' to expand enough to let some of the chemicals out, mixing them together and causing the refridgerating effect. This mechanism prevents the beetles from wasting any of their precious chemical reserves when not necessary, such as at night.
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