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  2. From Ice Age to Modern Day: How Reindeer Thrive in Extreme Cold

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    A reindeer’s nose is full of blood vessels that warm cold air as it is inhaled, which is why reindeer noses often exhibit a distinct red hue in cold weather. In a fraction of a second, the cold ...

  3. Discover the Incredible Adaptations That Help Reindeer Thrive ...

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    The bacteria and protozoans in the stomach of a reindeer break down lichen compounds into sugars that the animals use for sustenance. Reindeer need a lot of food to survive a long winter.

  4. 12 Incredible Reindeer Facts for Christmas - AOL

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    Reindeer Have Unique Winter Adaptations. There’s a reason reindeer prefer cold weather. ... A wild adult reindeer or caribou can live up to 20 years in captivity, although the typical lifespan ...

  5. Mountain reindeer - Wikipedia

    en.wikipedia.org/wiki/Mountain_reindeer

    The mountain reindeer has several physiological adaptations to cope with different environmental temperatures. Reindeer have hemoglobin that allows for high oxygen unloading even at very cold temperatures. [1] This is essential because reindeer limbs are often kept much colder than core body temperature, a phenomenon known as regional ...

  6. Chionophile - Wikipedia

    en.wikipedia.org/wiki/Chionophile

    Japanese macaques can survive in cold temperatures of below −15°C (5°F), and are among very few primates that can do so.. Chionophiles are any organisms (animals, plants, fungi, etc.) that can thrive in cold winter conditions (the word is derived from the Greek word chion meaning "snow", and -phile meaning "lover").

  7. Allen's rule - Wikipedia

    en.wikipedia.org/wiki/Allen's_rule

    Allen's rule - Hare and its ears on the Earth [1]. Allen's rule is an ecogeographical rule formulated by Joel Asaph Allen in 1877, [2] [3] broadly stating that animals adapted to cold climates have shorter and thicker limbs and bodily appendages than animals adapted to warm climates.

  8. Discover the Epic Journey of Reindeer: From Tundras to Forests

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    Reindeer’s cloven hooves are well adapted to survive the cold. During colder months, a reindeer’s hooves toughen up, allowing them to step on frozen, harsh terrain. Their eyes are adapted to ...

  9. Heterothermy - Wikipedia

    en.wikipedia.org/wiki/Heterothermy

    Heterothermy or heterothermia (from Greek ἕτερος heteros "other" and θέρμη thermē "heat") is a physiological term for animals that vary between self-regulating their body temperature, and allowing the surrounding environment to affect it.