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TIL that although Rhinos have very poor sight, they can communicate by using infrasonic (20Hz or lower) hums.

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8aOlV TIL most people now think Oreos are vegan, but they’re not because they have cross contact with milk. OREO FAQ states they are NOT vegan.
vPBd4 TIL that when Dana White and the Fertittas, purchased the UFC from its previous owners in 2001 for $2 million, they received only the brand name and an old octagon, other assets were already sold off including the domain name UFC.com which had been sold to a company named 'User Friendly Computers"
d8KOQ TIL that the fade-out at the end of Holst's Neptune was achieved by slowly closing the door on a female choir as they sang in another room.
lbOr TIL There’s a species of marsupial that fucks to death. The Antechinus males all die en masse at the end of each mating season, after vigorous and sustained sexual encounters causes their bodies to disintegrate from stress.
nedOB TIL about the “Three Finger Rule” - that people can generally only open their mouth as wide as three of their own fingers stacked on top of each other. This rule can help you know if food (such as a burger) is too large to comfortably bite.