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TIL in some regions, eating hippo meat can be dangerous due to their susceptibility to anthrax, which can transmit to humans.

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QJle9 TIL that, in biology, any group of fish that stay together for social reasons are shoaling, and if the group is swimming in the same direction in a coordinated manner, they are schooling.
YpZ6x TIL I learned that a handicapped woman invented an underwater wheelchair in 2012 as an art project and it works so well that able-bodied divers have trouble keeping up.
YQvB TIL Dissociative Identity Disorder (or split personalities) can be so extreme that one personality can show severe allergic to a substance and the other one will not show any reaction at all.
epkp4 TIL about the cosmic lithium problem: Post-Big Bang, the universe had mainly hydrogen and helium, with traces of lithium and beryllium. Surprising, there's 3x less lithium in ancient stars than predicted and scientists aren’t sure why.
9YBMB TIL the medical name for a butt crack is “intergluteal cleft”