What makes Rudolph's nose so red?

Scientists have discovered just what makes Rudolph's nose turn red:

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After reading about this before Christmas, I looked at reindeer noses differently throughout the holidays. Red or just warm?

My brother told me about this just before christmas, and since then I have not sung the song anymore...anyhow, it's good to know there are scientists who take these matters seriously!

By Cyttil Dalionzo (not verified) on 01 Jan 2013 #permalink