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TIL some flatworm species engage in Penis Fencing to determine who has to be the mother (they got both kinds of genitalia)

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XkmX TIL that teenagers aren’t stupid in the way they’re noticed. Their brains are smart, making them take more risks than an adult would, helping them gain “useful experience”. This is not done by ignoring risks, but by enhancing the sense of reward, making rewards outweigh risks more in decision making
rN5Ex TIL In 1859, Richard Carrington was using his telescope to project an image of the Sun on a screen and two beads of searing white light appear across a sunspot, fading within minutes. For hours, he remained poised at the telescope in case it reappeared
4W6o TIL Dolphins can overcome sleep deprivation and remain constantly vigilant for days at a time by resting one half of their brain while the other half remains conscious.
rRON0 TIL the pilot episode of LOST was so expensive (~$14 million) that the network president was fired for green-lighting it
oRKkW TIL that Oliver Kahn saved every single penalty shot taken against him by 9 year olds at a charity event, where money was donated for every penalty scored.