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Via the always-excellent Annals of Improbable Research come not one, but two, studies (both of them Dutch... make of that what you will) on possible physiological explanations for Rudolph's ruby schnoz.
A close-up image of a blood vessel in the brain shows a picture that looks amazingly like Rudolph the Red-Nosed Reindeer. Seriously, there's the antlers, the tail, and even the famous glowing red nose.
I was walking through NYC today, and noticed an invasion of people dressed as Santa Claus. At least a hundred. I don't know what they were up to, but none of their costumes were as good as the Red-Nippled Reindeer.
What if Rudolph were reimagined as an evil, metallic minifig?