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influx of food to meet energy demands. Although lions are much smaller than crocodiles, the lions must eat more often than crocodiles because of the higher metabolic output necessary to maintain the lion's heat and energy. The crocodile needs only to lie in the sun to digest more quickly and synthesize
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as reptiles, necessitating larger energy demands, and consequently producing more heat to use in thermoregulation. An ectotherm the same size of an endotherm would not be able to remain as active as the endotherm, as heat is modulated behaviorally rather than biochemically. More time is dedicated to
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Large ectotherms displaying the same body size as large endotherms have the advantage of a slow metabolic rate, meaning that it takes reptiles longer to digest their food. Consequently gigantothermic ectotherms would not have to eat as often as large endotherms that need to maintain a constant
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Gigantothermy allows animals to maintain body temperature, but is most likely detrimental to endurance and muscle power as compared with endotherms due to decreased anaerobic efficiency. Mammals' bodies have roughly four times as much surface area occupied by
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62:Homeothermy
447:Categories
357:2011-12-21
330:2011-12-21
280:References
230:Advantages
202:endotherms
72:Stenotherm
25:in animals
206:dinosaurs
198:mosasaurs
186:megafauna
77:Eurytherm
52:Mesotherm
47:Endotherm
42:Ectotherm
438:Davidson
417:23861968
377:PLOS ONE
350:BBC News
243:See also
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385:Bibcode
190:turtles
163:biology
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