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TIL The percentage of Neanderthal DNA in modern humans is zero or close to zero in people from African populations, and is about 1 to 2 percent in people of European or Asian background.

Read more medlineplus.gov

via reddit.com

OlvR TIL actor Cary Grant made a chocolate trail for his mistress at the Mayfair Hotel in downtown St. Louis. The manager liked the idea so much that he made a chocolate on the pillow upon arrival one of the hotel’s many standard amenities. Hotels have since adopted the gesture.
6Ayl TIL that there is a species of ant that is totally incapable of caring for their young, or feeding themselves, and thus relies on slave labor from other ants
Wkje8 TIL: The "overview effect" is a cognitive shift in awareness reported by some astronauts during spaceflight, often while viewing the Earth from outer space. It is the experience of seeing firsthand the reality of the Earth in space.
6900X TIL that during WWII a German catholic priest was arrested and executed for telling a joke about Hitler
nWjjB TIL, That there is only 4,562 names that are approved in iceland (~2,391 female, ~2,171 Male). Any other names have to be ran by the Icelandic Naming Committee.