20201224 挪威苔原上的北极光和野生驯鹿 必应壁纸

挪威苔原 挪威苔原上的北极光和野生驯鹿 驯鹿在北美被称为北美驯鹿，是为了生活在寒冷的北极地区，比如挪威苔原地区，在那里，这群驯鹿被拍到在刺眼的北极光漩涡下。驯鹿进化出独特的特征，帮助它们在这些恶劣的环境中茁壮成长。他们的鼻子在空气进入肺部之前就已经适应了加热，这有助于在最冷的天气里保持稳定的体温。它们的大部分身体，包括蹄子，都覆盖着厚厚的毛皮，以保持良好的隔热性。事实上，它们更容易过热然后结冰，所以当它们今晚在繁星点点的天空中飞行时，它们会比穿着红色天鹅绒的圣诞老人感觉到更像是在偷偷摸摸对。驯鹿1823年，随着《圣尼古拉斯的来访》这首诗被引入圣诞传说，克莱门特·克拉克·摩尔（Clement Clarke Moore）创作的《圣诞前夜》（The Night Before Christmas）描绘了一幅圣诞老人和他的雪橇，由八只会飞的驯鹿Dasher、Dancer、Prancer、Vixen、Comet、丘比特、Donner和Blitzen驾驶。1939年，罗伯特·L·梅为他的雇主蒙哥马利·沃德（Montgomery Ward）创作了一篇关于红鼻子与圣诞老人格格不入的故事，以此作为百货公司圣诞促销活动的一部分。在流行文化中，著名的驯鹿通常被称为雄性（也许，除了维克森？）但是，由于这些动物通常被描绘成鹿角完好无损，所以季节性拉雪橇的人更有可能是雌性。这是因为雄性驯鹿在12月初的交配季节结束时会脱落鹿角，而雌性驯鹿则在整个冬季都会活动较薄的鹿角。（被阉割的雄性遵循一个与雌性驯鹿相似的鹿角周期，但我们没有

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Known in North America as caribou, reindeer are built to live in freezing Arctic regions like northern Norway, where this herd was photographed under the transfixing swirl of the aurora borealis, or northern lights. Reindeer have evolved unique features that help them thrive in these harsh environments. Their noses are adapted to warm the air they breathe before it enters their lungs, which helps maintain a steady body temperature even in the coldest of weather. And most of their bodies, including their hooves, are covered with thick, dense fur to keep them well insulated. In fact, they are more likely to overheat then freeze—so when they're flying through the starry skies tonight, they'll be feeling snugger than Santa Claus in his red velvet suit.Reindeer were introduced to Christmas lore in 1823 with the poem 'A Visit from St. Nicholas,' also known as 'The Night Before Christmas.' Written by Clement Clarke Moore, the verses paint a picture of a Santa Claus and his sleigh, driven by eight flying reindeer—Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Donner, and Blitzen. In 1939, Rudolph was added to Santa's squad when Robert L. May created a story about the red-nosed misfit for his employer, Montgomery Ward, as part of a Christmas promotion for the department store. The famous reindeer are often referred to as males in pop culture (except, maybe, Vixen?), but as the animals are typically depicted with their antlers intact, it is more likely the seasonal sleigh-pullers are female. This is because male reindeer shed their antlers at the end of the mating season in early December, while females sport their thinner antlers throughout the winter. (Castrated males follow an antler cycle that's similar to female reindeer, but we don't

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