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TIL India has 122 major languages and 1599 other languages

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LkDBQ TIL "drooping ears" is a trait for domesticated animals that doesn't occur in the wild (except elephants). Almost all species gain the trait when domesticated. One experiment successfully domesticated foxes over 40 generations, and by then their ears were drooping.
Lg89 TIL there is a non-profit dedicated to lobbying politicians to double NASA’s budget to 1¢ per tax dollar.
MDgm TIL neuroscientist James Fallon discovered he was a psychopath while studying brain scans to search for patterns that correlated with psychopathic behavior.
GAvRN TIL there is a Worlds Ugliest Dog competion that has been held at the Sonoma-Marin fair in North CA since the 1970s
xmkg TIL variations in sexual orientation (homosexuality, bisexuality, etc) are found not just in humans, but in over 1000 species, most of which predate the existence of modern humans. The biological nature and origins of these variations are not understood, and are a subject of ongoing research.