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TIL that prairie dogs have a complex language in which they can describe the size and shape of a human, the color of clothes the human is wearing, and even whether the human has a gun.

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xVMJ5 TIL of a Gravity Hill where a car in neutral will appear to roll up a hill, however, it is down to the surrounding landscape producing an optical illusion making the slight downhill appear to be an uphill.
wL0M1 TIL that Bill Walton (Trailblazers, Celtics) and Bruce Walton (Cowboys) are the only brother combination to play in the NBA Finals and the Super Bowl.
ADJXx TIL a Danish company modified a version of thale cress (plant), that changes from green to red when being near landmines, because of the nitrogen dioxide gas released from landmines. This way you can detect landmines and save lives.
kOk5d TIL In 1883, gifts were distributed after a show in Victoria Hall. Many of the estimated 1100 children surged downstairs, but the door opened inward and had been bolted so only one could pass at a time. Those in front were crushed by those behind them. 183 children between the ages of 3 and 14 died.
ge6y TIL: In the 1930’s, Ben “Bugs” Hardaway, an animator who co-directed several Looney Tunes and Merrie Melodies shorts, was asked to draw pictures of rabbits for a new short, while drawing, Ben labeled the papers as “Bug’s Bunny.” The name stuck.