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Aestivation (Latin: aestas (summer); also spelled estivation in American English) is a state of animal dormancy, similar to hibernation, although taking place in the summer rather than the winter. Aestivation is characterized by inactivity and a lowered metabolic rate, that is entered in response to high temperatures and arid conditions. [ 1 ]
Hibernation is a state of minimal activity and metabolic depression undergone by some animal species. Hibernation is a seasonal heterothermy characterized by low body-temperature, slow breathing and heart-rate, and low metabolic rate. It is most commonly used to pass through winter months – called overwintering.
Some animals seasonally go into long periods of inactivity, with reduced body temperature and metabolism, made up of multiple bouts of torpor. This is known as hibernation if it occurs during winter or aestivation if it occurs during the summer. Daily torpor, on the other hand, is not seasonally dependent and can be an important part of energy ...
Many mammals (including some primates) hibernate, and the strategy can be seen across the animal kingdom—even occurring in the summer in a process known as estivation.
Hibernation is a mechanism used by many mammals to reduce energy expenditure and survive food shortages over the winter. Hibernation may be predictive or consequential. An animal prepares for hibernation by building up a thick layer of body fat during late summer and autumn that will provide it with energy during the dormant period.
During the warmer season, bears become hyperphagic, gorging on enormous amounts of food and becoming quite fat in order to help them survive the lean winter months, when food is scarce and they ...
Do Bears Hibernate During the Winter? Commenter @CJAGIII pointed out, "They don't hibernate. They actually enter what's called "torpor". A deep sleep similar to hibernation." Most of us grew up ...
Prenolepis imparis enters a hibernation-like state called aestivation during the summer. P. imparis secretes an opaque white liquid from its abdomen as a defense against other ants, including Linepithema humile . [ 3 ]