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There is an animal that grows a temporary 'mohawk' to impress females

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4Ddg TIL 6 Corporations Control 90% Of The Media In America
RZJj TIL Taurine, a common ingredient in energy drinks, was first isolated from the bile of an ox, but now is synthesized in labs. Cat food is required by law to contain taurine, since cats without a taurine-rich diet will go blind, and lose their hair and teeth.
R7Ml1 TIL on the Lewis and Clark expedition in order to speak to a indian tribe they spoke English to a man who knew French that spoke to a man who knew French and Hidatsa so he told his wife Sacagawea who knew Hidatsa and Shoshone then she would tell the tribes slave who knew Shoshone and Salishan.
wopAE TIL that honeybees have five eyes. They have two large compound eyes and three smaller simple eyes on top of their heads, which help them navigate and detect light.
OG0W4 TIL the force needed to use an English longbow effectively means that skeletons of longbowmen surviving from the period often show enlarged left arms and bone spurs in the arms and shoulders