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TIL Dandelions are not indigenous to North America and were introduced by European settlers

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XELkQ TIL about Samuel Green, America's first known serial killer. Born in 1796 and executed in Boston in 1822, Green killed people all over New England but his total body count is unknown. Later, he was the first killer whose crimes psychologists attributed in part to horrific abuse during childhood.
KOa1w TIL that there are kinky spiders who tie up their lovers with silken cords before and during sex to avoid getting eaten and to extend their mating time.
wL6yY TIL Research shows that cats are able to recognise their own names being called. It is not known why they do not always respond, however they may not attach deep meaning to specific words.
pY9L8 TIL There is a theory as to why cuckoo egg hosts knowingly raise cuckoos: they do it or else the cuckoo will destroy their nest and kill their young.
vmXr TIL that the Hogwarts Express from the movies is a real train in Scotland and not computer generated