› added 5 months ago

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TIL that human bones contain piezoelectric crystals that generate tiny electrical currents when stressed—your skeleton literally produces electricity when you walk.

Read more nature.com

via reddit.com

b9bv0 TIL that because lotteries are illegal in Canada, companies tie the award to a game of skill, which is typically asking an elementary math question
Odve TIL Aussie 200M record holder Peter Norman who won silver at the 1968 Olympics wore a badge to support Americans Smith and Carlos while on the podium during their infamous black power salute. After this he and his family were outcasts in Australia and he couldn’t compete in the 72 Olympics.
697KX TIL chessboxing is a thing
VMpwB TIL A single cleaner wrasse fish works removing bloodsucking parasites from up to 2,000 client fish per day. They sometimes cheat their clients by taking illicit bites of the protective mucus covering their skin. If a client gets upset, they try to make amends by offering a complementary fin massage
VBMYk TIl There are frogs who develop live tadpoles inside their 'vocal sac' (throat!) & give birth by spitting them out & also toads who give birth to live offspring through their back.