Hibernation is a state of inactivity and metabolic depression in animals, and it is characterized by lower body temperature, slower breathing, and lower metabolic rate.


Hibernating animals conserve energy, especially during winter when food is short, and they use their energy reserves, such as body fat, at a slow rate.


Hibernation may last several days or weeks depending on the species, temperature and the time of year.


Associated terms: Hibernate


Also see:
Aestivation
Torpor