Aestivation vs. Hibernation: Know the Difference
By Shumaila Saeed || Updated on November 20, 2023
Aestivation is dormancy in hot/dry conditions, conserving moisture and energy. Hibernation is dormancy in cold conditions, conserving energy during scarce food availability.
Key Differences
Aestivation is often less well-known than hibernation, but both are crucial survival strategies for animals facing seasonal environmental challenges—heat and aridity in the case of aestivation, and cold and food shortage in hibernation.
Shumaila Saeed
Nov 18, 2023
Aestivation is a state of dormancy or torpor that some animals enter during extremely hot or dry periods to conserve energy and minimize water loss. Conversely, hibernation is a similar state of reduced metabolic activity, but it occurs during cold weather to conserve energy when food is scarce.
Shumaila Saeed
Nov 18, 2023
Aestivation primarily helps animals avoid dehydration and extreme temperatures, particularly in arid and tropical regions. Hibernation, on the other hand, is an adaptation to cold climates, allowing animals to conserve energy by reducing physiological activities during times of food scarcity.
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Nov 18, 2023
During aestivation, animals like snails, fish, and amphibians slow their metabolic rate to survive harsh environmental conditions like drought. In contrast, animals such as bears, bats, and some rodents hibernate, lowering their body temperature and metabolic rate to survive the winter when food sources are limited.
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Nov 18, 2023
The duration of aestivation varies among species and depends on environmental conditions, potentially lasting for months. Hibernation also varies in duration, typically lasting for several months, depending on the species and the severity of the winter.
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Nov 18, 2023
Comparison Chart
Metabolic Changes
Decreased metabolic rate
Reduced body temperature and metabolic rate
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Nov 18, 2023
Aestivation and Hibernation Definitions
Aestivation
Dormancy in summer
The desert frog enters aestivation during the dry summer months.
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Nov 16, 2023
Hibernation
Winter dormancy
Bears are known for hibernating through the winter.
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Nov 16, 2023
Aestivation
Torpor in hot periods
Aestivation helps certain snails survive extreme heat.
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Nov 16, 2023
Hibernation
Metabolic reduction in cold
During hibernation, the squirrel's metabolic rate drops significantly.
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Aestivation
Metabolic slowdown in drought
During drought, some fish aestivate in mud cocoons.
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Nov 16, 2023
Hibernation
Energy conservation in winter
To conserve energy, the animal hibernates in cold climates.
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Nov 16, 2023
Aestivation
Energy conservation during heat
To conserve energy, the animal undergoes aestivation.
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Nov 16, 2023
Hibernation
Cold weather torpor
Hibernation allows bats to survive the cold.
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Nov 16, 2023
Aestivation
Survival strategy in arid conditions
Aestivation is crucial for amphibians in arid regions.
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Nov 16, 2023
Hibernation
To be in a dormant or torpid state during a cold period, especially during the winter.
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Oct 19, 2023
Hibernation
To be in an inactive or dormant state or period
"In Lawrenceville people hibernated and life passed them by" (Jacqueline Susann).
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Oct 19, 2023
Aestivation
(biology) A state of inactivity and metabolic depression during summer: the summer version of hibernation.
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Oct 19, 2023
Hibernation
A state of minimum power consumption, inactivity and metabolic depression in some animals during winter.
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Oct 19, 2023
Aestivation
(botany) The arrangement (vernation) of the parts of a flower inside a bud; prefloration.
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Oct 19, 2023
Hibernation
A hypothetical state of minimum power consumption, inactivity and metabolic depression in humans during long space flights.
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Hibernation
(computing) A standby state which conserves power by writing the contents of the memory to disk and completely power off the computer, in order that one will resume the session from the disk.
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Oct 19, 2023
Aestivation
The state of torpidity induced by the heat and dryness of summer, as in certain snails; - opposed to hibernation.
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Oct 19, 2023
Aestivation
The arrangement of the petals in a flower bud, as to folding, overlapping, etc.; prefloration.
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Oct 19, 2023
Hibernation
The torpid or resting state in which some animals pass the winter
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Oct 19, 2023
Aestivation
(zoology) cessation or slowing of activity during the summer; especially slowing of metabolism in some animals during a hot or dry period
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Oct 19, 2023
Hibernation
Cessation from or slowing of activity during the winter; especially slowing of metabolism in some animals
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Oct 19, 2023
Aestivation
(botany) the arrangement of sepals and petals in a flower bud before it opens
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Oct 19, 2023
Hibernation
The act of retiring into inactivity;
He emerged from his hibernation to make his first appearance in several years
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Hibernation
Long-term sleep in winter
The hedgehog's hibernation is like a long winter sleep.
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Nov 16, 2023
Repeatedly Asked Queries
What is aestivation?
Aestivation is a period of dormancy animals enter in hot or dry conditions.
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Nov 18, 2023
Can any animal aestivate?
Not all animals can; aestivation is specific to certain species adapted to hot or dry environments.
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Nov 18, 2023
Why do animals aestivate?
Animals aestivate to conserve energy and minimize water loss during harsh environmental conditions.
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Nov 18, 2023
What triggers hibernation in animals?
Cold weather and food scarcity typically trigger hibernation.
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How do animals survive during hibernation?
Animals survive by using stored energy and reducing physiological activities.
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Can hibernation occur in warm climates?
Hibernation is mostly associated with cold climates, though similar states can occur in some warm-climate species.
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Nov 18, 2023
How long can aestivation last?
Aestivation can last for weeks to months, depending on the species and environment.
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Nov 18, 2023
Are there health benefits to hibernation?
Hibernation can have benefits like energy conservation and reduced need for resources.
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Is hibernation similar to sleep?
Hibernation is a deeper state than sleep, with significant metabolic slowdown.
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Is hibernation a voluntary process?
Hibernation is an involuntary response to environmental conditions.
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Do animals eat during aestivation?
Generally, animals do not eat during aestivation and rely on stored energy.
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Nov 18, 2023
Are there risks during aestivation?
Risks include vulnerability to predators and potential dehydration.
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Nov 18, 2023
How do animals prepare for hibernation?
Animals prepare by eating more to store energy as fat.
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Is hibernation the same in all animals?
The specifics of hibernation can vary widely among different species.
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Can humans enter a state similar to hibernation?
Humans cannot naturally hibernate, though research is exploring similar metabolic states for medical purposes.
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Nov 18, 2023
Can aestivation be interrupted?
Environmental changes like rainfall can interrupt aestivation.
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Do animals age during aestivation?
Biological processes slow down, possibly affecting the aging process.
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Nov 18, 2023
What physiological changes occur during aestivation?
Decreased metabolic rate and reduced water loss are common changes.
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Nov 18, 2023
Does every animal in a species aestivate?
Not necessarily; it depends on individual needs and environmental factors.
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Nov 18, 2023
What happens when animals wake from hibernation?
They experience increased metabolism and resume normal activities.
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Nov 18, 2023
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About Author
Written by
Shumaila SaeedShumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.
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