Arctic hiking mattress from processed reindeer pelt
نویسندگان
چکیده
منابع مشابه
Arctic reindeer extend their visual range into the ultraviolet.
The Arctic has extreme seasonal changes in light levels and is proportionally UV-rich because of scattering of the shorter wavelengths and their reflection from snow and ice. Here we show that the cornea and lens in Arctic reindeer do not block all UV and that the retina responds electrophysiologically to these wavelengths. Both rod and cone photoreceptors respond to UV at low-intensity stimula...
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In light of current debates on global climate change it has become important to know more on how large, roaming species have responded to environmental change in the past. Using the highly variable mitochondrial control region, we revisit theories of Rangifer colonization and propose that the High Arctic archipelagos of Svalbard, Franz Josef Land, and Novaia Zemlia were colonized by reindeer fr...
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متن کاملShifting mirrors: adaptive changes in retinal reflections to winter darkness in Arctic reindeer
Arctic reindeer experience extreme changes in environmental light from continuous summer daylight to continuous winter darkness. Here, we show that they may have a unique mechanism to cope with winter darkness by changing the wavelength reflection from their tapetum lucidum (TL). In summer, it is golden with most light reflected back directly through the retina, whereas in winter it is deep blu...
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ژورنال
عنوان ژورنال: Rangifer
سال: 1996
ISSN: 1890-6729
DOI: 10.7557/2.16.3.1203