The Saiga's nose is actually an adaptation to the extremely cold and dusty environment in which it lives. Its internal structure is composed of an intricate network of bones, hairs, and mucous-secreting glands. During summer migrations it helps filter out dust kicked up by the herd and cools the animals blood. During the winter it heats up the frigid air before it is taken into the lungs, thereby reducing heat loss in its body.
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