Depending on the source of an animal’s body temperature it may be classified as either an ectotherm or an endotherm. An ectotherm is an animal that relies on external environment , perhaps by basking in the sun, to regulate its internal body temperature and are commonly referred to as “cold-bloodied.” Endotherm is an animal that regulates body temperature through metabolic processes, like the breakdown of food, and are commonly called “warm-bloodied.” This heating system is mainly a by-product of the inefficiency of the anabolism and catabolism occurring in the cells of the body (Atkin 2011; Whitney 2005). All mammals are endotherms. Interestingly, butterflies …show more content…
We identified three explanations which could act alone or in concert – appression may (1) reduce the flow of cooling air near and around ventral thoracic regions (2) trap warm air radiating off the substrate (sensu Wasserthal, 1975) and ⁄ or (3) trap warm air radiating ventrally from heated wing surfaces (the warm tent hypothesis). Although at this stage we lack information regarding the potential application of these processes under field conditions, our experiments shed some light on the issue (p.