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TIL Points for Deer refer to the number of actual protrusions or “points” on a rack of antlers.

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m1Vwo TIL our ABO blood group antibodies are due to early minor infections likely from Gram-negative Enterobacteriaceae and Influenza virus epitopes.
0AxA TIL During the Second World War, the U.S. Army discovered that colorblind soldiers could distinguish camouflaged targets better than their counterparts with color vision could.
neo9r TIL AL-Jahiz, A Ethiopian Muslim suggested Evolution of New Species by Natural Selection in 776AD (150 AH), 1000 yrs before Darwin, in his "Book of the Animals"
j6Xgj TIL Visual fixation is the ability to maintain your gaze on a single location. It's a short list of the species that we have confirmed have this ability; cats are on it, but dogs aren't.
5Y6eQ TIL Los Angeles has more 4x the national average of doughnut shops due to one guy, who worked his way from rags to riches twice