An ectotherm (from the Greek ἐκτός (ektós) "outside" and θερμός (thermós) "heat"), more commonly referred to as a "cold-blooded animal", is an animal...

no absolute or clear separation between the nature of endotherms and ectotherms. Endothermy was thought to have originated towards the end of the Permian...

per cell than ectotherms, enabling them to generate more heat by increasing the rate at which they metabolize fats and sugars. Ectotherms use external...

ambient environmental temperature. Many terrestrial ectotherms are poikilothermic. However some ectotherms remain in temperature-constant environments to the...

tissue layer Ectoplasm (cell biology), the outer part of the cytoplasm Ectotherm, in biology, a cold-blooded animal This disambiguation page lists articles...

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...

animal with a thermoregulatory strategy intermediate to cold-blooded ectotherms and warm-blooded endotherms. Mesotherms have two basic characteristics:...

Thermoregulation in animals Ectotherm Endotherm Mesotherm Poikilotherm Homeothermy Heterothermy Stenotherm Eurytherm Thermolabile Thermostability Gigantothermy...

Hibernation is a state of minimal activity and metabolic depression undergone by some animal species. Hibernation is a seasonal heterothermy characterized...

Thermoregulation in animals Ectotherm Endotherm Mesotherm Poikilotherm Homeothermy Heterothermy Stenotherm Eurytherm Thermolabile Thermostability Gigantothermy...