Reptiles

Cold-blooded creatures take on the temperature of their surroundings. They are hot when their environment is hot and cold when their environment is cold. In hot environments, cold-blooded animals can have blood that is much warmer than warm-blooded animals. Cold-blooded animals are much more active in warm environments and are very sluggish in cold environments. This is because their muscle activity depends on chemical reactions which run quickly when it is hot and slowly when it is cold. A cold-blooded animal can convert much more of its food into body mass compared with a warm-blooded animal.

My 'Director of Sales', the head guy in my small office in a big building must be reptialian. He turned the heat on today, and then jammed the thermostat up to 80+ degrees. Nothing like sweating your ass of just sitting.