Arctic Ground Squirrel
探検哺乳類
Arctic Ground Squirrel
urocitellus parryii
The Arctic Ground Squirrel is a resilient and highly social rodent native to the wind-swept tundras, alpine meadows, and river valleys of North America and Siberia. As the largest of the North American ground squirrels, they have developed extraordinary adaptations to survive some of the harshest winters on Earth. These animals live in tight-knit colonies and excavate elaborate burrow systems in the sandy, well-drained soils above the permafrost, constantly communicating with their neighbors using a complex vocabulary of bird-like chirps and whistles to warn of approaching predators.
生息地: Found in open arctic tundra, alpine meadows, and sandy river banks with well-drained soils above the permafrost layer.
外見
The Arctic Ground Squirrel has a robust, cylindrical body with a short, flat tail, measuring around 33 to 50 centimeters in total length. Its dense coat features a beautiful mottled pattern of reddish-brown, tan, and gray fur, thickly speckled with distinct white spots along its back. The face, shoulders, and sides of its neck are washed with a warm, rusty-cinnamon color, while its underparts are a pale cream or light tan. It has small, rounded ears set flat against its skull to minimize heat loss, and strong, dark claws specialized for digging through tough tundra soils.
界Animalia門Chordata綱Mammalia目Rodentia科Sciuridae属Urocitellus
カテゴリ
哺乳類レア度
Common
危険度
1/5 · 非常に低い
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おもしろい事実
Male Arctic ground squirrels wake up from hibernation up to three weeks earlier than females, using cached seeds to regain muscle mass and elevate testosterone levels before mating.
They are known to occasionally scavenge on the carcasses of other animals, including snowshoe hares, to secure high-quality proteins and fats for the winter.
To achieve supercooling, these squirrels purge their blood of any potential ice-nucleating agents, preventing ice crystals from forming in their blood vessels.
特殊能力
能力
Extreme Supercooling
During hibernation, their core body temperature drops below freezing to as low as -2.9 degrees Celsius without solidifying, the lowest measured temperature of any living mammal.
能力
Sentry Alarm System
They coordinate colony defense by posting sentries who use high-pitched, bird-like whistles to warn others of aerial or terrestrial threats.
能力
Rapid Neural Regeneration
Upon waking from hibernation, their brains rapidly rebuild shrunken neural connections within hours to quickly restore full cognitive function.
サイズと詳細
- 長さ
- 33-50 cm
- 体重
- 0.4-1.2 kg
- 寿命
- 3-6 年
- Top Speed
- 30 km/h
- 一度の産卵数
- 5-10
- 抱卵期間
- 25-30 日
食性と食事
An opportunistic feeder that primarily consumes tundra plants, seeds, and berries, but heavily supplements its diet with insects, mushrooms, and animal carrion to build crucial fat reserves.
年齢による違い: Juveniles focus on consuming tender green vegetation and high-energy seeds, whereas adults consume more diverse items, including larger insects and carrion, to quickly gain fat prior to hibernation.
主な食物
- Tundra grasses
- Willow leaves
- Crowberries
- Mushrooms
- Insects
- Animal carrion
採餌方法
- Foraging
生態系とのつながり
eaten by
Grizzly Bear
Ursus arctos horribilis
Grizzly bears hunt Arctic ground squirrels by vigorously digging up their burrow systems, especially during late summer.
eaten by
Arctic Fox
Vulpes lagopus
The Arctic fox hunts ground squirrels, relying heavily on them and their pups as a key food source during the summer breeding season.
eaten by
Snowy Owl
Bubo scandiacus
Snowy owls hunt ground squirrels from elevated perches, preying on individuals that forage too far from burrow entrances.
特徴
このオブジェクトにはまだ特徴バッジが割り当てられていません。
別名
まだ別名はありません。
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安全性
危険度
1/5 · 非常に低い
まだ特別な安全上の注意はありません。
よくある質問
Arctic Ground Squirrelを見分けるには？
Arctic Ground Squirrelを識別する最も簡単な方法は、Snappit自然識別アプリを使用することです。
Arctic Ground Squirrelの長さは何ですか？
33-50 cm
Arctic Ground Squirrelの体重は何ですか？
0.4-1.2 kg
Arctic Ground Squirrelの寿命は何ですか？
3-6 年
Arctic Ground Squirrelのtop Speedは何ですか？
30 km/h
Arctic Ground Squirrelは何を食べますか？
An opportunistic feeder that primarily consumes tundra plants, seeds, and berries, but heavily supplements its diet with insects, mushrooms, and animal carrion to build crucial fat reserves.
Arctic Ground Squirrelは通常どこに生息していますか？
Found in open arctic tundra, alpine meadows, and sandy river banks with well-drained soils above the permafrost layer.
Arctic Ground Squirrelはどのように狩りをしますか？
Foraging
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