Tem­per­a­ture-reg­u­lat­ing nose

World of Animals - - All About Reindeer -

Rein­deer have large, broad noses that help to reg­u­late their body tem­per­a­ture. The cold air is warmed be­fore it en­ters the lungs, and the used

warm air is cooled as it is ex­haled. Any water vapour is con­densed and ab­sorbed into the blood or used to mois­ten the cold, dry, in­com­ing air.

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