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TIL Fireflies are the most efficient lights in the world. 100% of energy is emitted as light. Fireflies: larvae & eggs glow, talk to each other with light, imitate each other, then eat other fireflies, are on almost every continent, taste bad, are medically and scientifically useful, adults live<1mo

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via reddit.com

JYLy4 TIL Early in his naval career, Horatio Nelson nearly died while fighting a polar bear. Wanting the bear’s pelt as a gift for his father, Nelson’s gun misfired and he attacked the bear with the butt of his rifle. He was only saved when his ship fired a cannon that scared the bear and it ran off.
D1D1j TIL Creedence Clearwater Revival released 3 albums in a single year (1969), all reaching Top 10 on the US Billboard chart. That same year they also toured incessantly, played Woodstock, and appeared on the Ed Sullivan Show.
69WnX TIL that boxer Oliver McCall’s actions against opponent Lennox Lewis (including crying, walking around the ring, and refusing to fight) in 1997, that he was deemed mentally ill and sent to a psychiatric ward after the match.
9wvB6 TIL of the Uncensored Library, a Minecraft server and map released by Reporters Without Borders to circumvent censorship in countries without freedom of the press. Several countries have their own wing with their banned media in English and the original text.
Am5g TIL of Wisdom, a 64 year old Albatross, who has flown over three million miles since being tagged, continues to lay eggs and, despite belonging to a monogamous species, has more than likely had to find a new mate due to her unusual longevity.