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TIL that if it were ethical to donate a testicle, the donor could father a child genetically belonging to you. Germ cells in the testes will always produce sperm cells with the donor’s genetics.

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via reddit.com

X0LQD TIL Static Apnea is a discipline in which a person holds their breath underwater for as long as possible and need not swim any distance. The "All Time List" for men is 11:54 and for women 9:02. The record where 100% oxygen is breathed up to 30 minutes prior to 'breathold' is 24:37 underwater.
rNKZd Today I learned that American couples only sleep with 1 duvet, large enough for the the two of them. And not separate ones. And they also have a weird thing called «top sheet»
8eNdG TIL that UC Berkeley offers a degree in "meme studies"
awBnJ TIL Muhammad Ali refused to be drafted into the military for the Vietnam war for which he was arrested and stripped of his boxing titles. “You won't even stand up for me in America for my religious beliefs—and you want me to go somewhere and fight, but you won't even stand up for me here at home?“
ENlX TIL The C.I.A. keeps a Flickr account. It has hundreds of declassified maps, diagrams and photos.