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TIL the IKEA Catalogue has surpassed the Bible as the world's most printed book

Read more telegraph.co.uk

via reddit.com

8eRNa TIL that cats teeth have a “blood groove” that prevents suction when they bite. This allows them to pull out and bite again more quickly.
5YjV8 TIL Fruit flies are considered model organisms to understand human alcoholism. Also, after extensive binge drinking males are known to engage in homosexual behavior
epD5 Today I learned that many of the men who acted as guards along the Great Wall of China in the Middle Ages spent their whole lives there. They were born there, raised there, they married there, died there, and were even buried within the wall.
5V11P TIL that male camels have a large organ in their throats (called “Dulla”), an inflatable sac they extrude from their mouths when in rut, to assert dominance and attract females. It resembles a long, swollen, pink tongue hanging out of the side of the mouth.
rRbko TIL In 1970 Eckhard and Christel Wehage frustrated with life in East Germany attempted to hijack a plane shortly after take-off to take them to West Germany. When they realised their escape plan had failed, they returned to their seats and shot themselves.