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108

TIL Octopuses have blue blood, three hearts and a doughnut-shaped brain

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rRRdo TIL that polar bears and penguins never meet in the wild, as they live exclusively in opposite poles. (North and south respectively)
yQBlv TIL that the White House press briefing room was built on top of a 50 foot swimming pool.
v18x8 TIL When a male giraffe is looking to impregnate a female, it brushes her read end with his nose to prompt urination. When she starts to pee, the male tastes the urine so he can the detect hormones that confirm whether she is ready to mate.
mxl1Y TIL that a Japanese chemical company once polluted a bay so thoroughly that some sediment contained up to 2 kg of mercury per ton. This concentration made mining economically viable, and eventually the company set up a subsidiary to do just that.
v19VK TIL Many common dog behaviors derive from the wolf predatory sequence(search, stalk, chase, grab, kill, dissect, eat). For example, ripping apart a stuffed animal is dissecting, a herding dogs desire to herd is a fragment of the stalk phase & hounds excel in the search phase