endotherm
Internally heated creature
An endotherm is an animal that generates its own body heat through internal metabolic processes, maintaining a relatively constant temperature regardless of the environment.
Mammals and birds are endotherms, unlike reptiles and amphibians, which are ectotherms—dependent on external heat sources.
Endotherms burn more calories but can remain active in cold conditions.
Animal body hair
- hairFibrous scalp covering
- blubberMarine mammal fat
- mammaryOf milk glands
- lactationMammary gland secretion
nursing · placental · marsupial · monotreme · gestation · diaphragm · neocortex · warm-blooded
Biological internal stability maintenance
- thermogenesisMetabolic production of warmth
- shiveringInvoluntary bodily trembling
- insulationThermal transfer prevention
- vasodilationRelaxation of vessel walls
vasoconstriction · hypothalamus · acclimatization · torpor · hibernation · calorimetry · mitochondria · thyroid
Bird's lightweight covering
- plumageBird's complete feather coat
- avianOf or concerning birds
- migrationMovement to new territory
- flightAerial journey by aircraft
warm-blooded · nesting · incubation · preening · ornithology · songbird · raptor · flock
Unfeeling or externally heated
- reptileCold-blooded scaled vertebrate
- amphibianDual-habitat cold-blooded vertebrate
- fishGilled aquatic vertebrate
- invertebrateAnimal sans backbone
fur
Animal body hair
lactation · nursing · placental · marsupial · monotreme · gestation · diaphragm · neocortex · warm-blooded · carnivore
homeostasis
Biological internal stability maintenance
- thermogenesisMetabolic production of warmth
- shiveringInvoluntary bodily trembling
- insulationThermal transfer prevention
vasodilation · vasoconstriction · hypothalamus · acclimatization · torpor · hibernation · calorimetry · mitochondria · thyroid
feathers
Bird's lightweight covering
flight · warm-blooded · nesting · incubation · preening · ornithology · songbird · raptor · flock · roost
cold-blooded
Unfeeling or externally heated
endothermectotherm
Organism heated externally
cold-blooded · reptile · amphibian · fish · invertebrate
- endothermic reactionProcess absorbing thermal energy
endothermic, endothermy, endotherms, endothermal, endothermically