On this week's special Christmas episode, the weirdest things we learned this week range from a Santa-esque giantess named Gryla and her 13 yule lads to a disease named after a boy called Christmas. Whose story will be voted "The Weirdest Thing I Learned This Week"?
The Weirdest Thing I Learned This Week is a podcast by Popular Science. Share your weirdest facts and stories with us in our Facebook group or tweet at us!
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Edited by Jessica Boddy: www.twitter.com/JessicaBoddy

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