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TIL that a former US marine has made edible crayons

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via reddit.com

XE1NP TIL scientists didn't know where birds went in the winter until 1822. That year, a stork was seen in Germany with an arrow from central Africa lodged in its neck, having flown 3,000 km in its wounded state. This provided the final proof that birds migrate.
Mn67 TIL Bill Gates and Warren Buffett went to lunch together at McDonalds. Warren paid, and had a coupon
6E4v7 TIL When researchers blocked AMPA-receptor removal in rats, they found that the rats were prevented from forgetting the locations of objects. To forget, it seemed that the rat brain had to proactively destroy connections at the synapse. Forgetting is not a failure of memory, but a function of it.
LZ TIL Pale, white skin in Europe evolved only 6000-10,000 years ago, likely to absorb more Vitamin D.
rryw TIL that Robert Stack (original host of the popular Unsolved Mysteries television show) was extremely skeptical about the segments involving paranormal occurrences. While recording his famous narrations, he would often turn to his producer in between takes and exclaim: “Oh, come on, Raymond!”