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TIL That 68 % of The World's Population Has Lactose Intolerance

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agjJ TIL the small diamond pattern etched into flashlights, tool handles, barbells, etc. is called “knurling”
xVNBg TIL that Killifish eggs can survive a trip through a bird's digestive system, spreading the fish to other places when the birds poop them out.
7V7b TIL In 2011 an artist placed 4 frat boys in a plexi box with 30 cases of beer, a bucket, and a Sharpie
kJ0Om TIL that dogs intentionally try to make humans laugh. They understand that laughter means play, and play is positive.
b9KRN TIL about 'Turnspit dogs', an extinct breed of small dogs that were trained to evenly roast meat over a fire by turning a spit