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  1. Dictionary

    hi·ber·na·tion
    [ˌhībərˈnāSHən]
    noun
    hibernation (noun) · hibernations (plural noun)
    1. the condition or period of an animal or plant spending the winter in a dormant state:
      "grizzly bears gorge on seeds to prepare for hibernation" · "honeybees are waking from their winter hibernation"
      • an extended period of remaining inactive or indoors:
        "the fair-weather cyclists are emerging from winter hibernation" · "we shut down, went into hibernation for a week"
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    Hibernation is a way that some animals deal with the harshness of winter. They curl up in a safe place and stay there until winter ends. Hibernating animals seem almost dead. They barely breathe, and their body temperature is near the freezing mark. In warmer weather they return to their regular activities.
    kids.britannica.com/kids/article/hibernation/353245
    Hibernating is not the same as sleeping. Some people might say that these animals are sleeping through winter but it's not the same as sleeping. During hibernation, an animal's heart rate and breathing slows down. Their body temperature also decreases. These changes help hibernating animals survive using less energy.
    www.bbc.co.uk/bitesize/topics/z6hv9j6/articles/zg2shcw
    Although traditionally reserved for "deep" hibernators such as rodents, the term has been redefined to include animals such as bears and is now applied based on active metabolic suppression rather than any absolute decline in body temperature.
    en.wikipedia.org/wiki/Hibernation
    Hibernation may last days, weeks, or months—depending on the species, ambient temperature, time of year, and the individual's body-condition. Before entering hibernation, animals need to store enough energy to last through the duration of their dormant period, possibly as long as an entire winter.
    en.wikipedia.org/wiki/Hibernation
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    Hibernation - Wikipedia

    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 most commonly occurs during winter months. Although traditionally … See more

    There is a variety of definitions for terms that describe hibernation in mammals, and different mammal clades hibernate differently. The … See more

    Ancient people believed that swallows hibernated, and ornithologist Gilbert White documented anecdotal evidence in his 1789 book See more

    Because they cannot actively down-regulate their body temperature or metabolic rate, ectothermic animals (including fish, reptiles, and amphibians) cannot hibernate. … See more

    Hibernation induction trigger (HIT) proteins isolated from mammals have been used in the study of organ recovery rates. One study in 1997 found … See more

    Researchers have studied how to induce hibernation in humans. The ability to hibernate would be useful for a number of reasons, such as … See more

    In endothermic animals
    As the ancestors of birds and mammals colonized land, leaving the relatively stable marine environments, more intense terrestrial seasons began playing a larger role in animals' lives. Some marine animals do go … See more

    Dormancy – State of minimized physical activity of an organism
    Torpor – State of decreased physiological activity in an animal
    Winter rest – Annual state for some plants and animals See more

    Wikipedia text under CC-BY-SA license
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  4. Hibernation | Winter Sleep, Torpor & Adaptation | Britannica

  5. How Hibernation Works | HowStuffWorks

    Web ResultFeb 9, 2021 · Hibernation is a long-term reduction in body temperature and metabolism that some animals use to survive …

    • Estimated Reading Time: 9 mins
  6. Not just sleep: all about hibernation - Curious - Australian …

  7. Hibernation: Nature’s Nap Time - U.S. National Park Service

  8. What is Hibernation? - Young People's Trust For the …

    Web ResultLearn how animals slow their heart rate and body temperature to survive the winter without eating much. Find out which animals hibernate, how they prepare and what happens during hibernation.

  9. Animals Don't Actually Sleep for the Winter and Other …

    Web ResultOct 11, 2017 · Not quite. Read on for more behind the science of hibernation. What is hibernation? Despite what you may have heard, species that hibernate don’t “sleep” during the winter. …

  10. hibernation - Kids | Britannica Kids | Homework Help

    Web ResultHibernation is a way that some animals deal with the harshness of winter. They curl up in a safe place and stay there until winter ends. Learn how hibernators prepare, survive, and wake up from …

  11. Some Animals Don’t Actually Sleep for the Winter, and …

    Web ResultFeb 26, 2024 · Hibernation is a state of reduced metabolism and activity, not sleep, that some animals enter to conserve energy in winter or other seasons. Learn about the types, benefits, and …

  12. What animals hibernate? Why? - BBC Bitesize

    Web ResultHibernation is when some animals become inactive to save energy during winter. Learn what hibernation is, when and why animals hibernate, and see examples of hibernating animals in the UK.

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