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TIL that a polar bear liver has enough vitamin A to kill 52 adults! Ito cells are cells in the liver that store Vitamin A (Lipid soluble). High Vitamin A production in marine algae at the bottom of the food chain results in polar bear livers with enough Vitamin A to last a human 143 years!

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WkDN TIL that the United States dropped from 17th to 47th place, in the Press Freedom Index since 2002.
l7nwa TIL that B-Movies were meant to be the bottom half of a double movie feature and were cheaper than Hollywood A-List Films (about 20% of the budget). Until the 1950s and 1960s, they were just considered cheaper films that theatres would pay a flat rental fee. The 'B' was not a grade for poor value.
gED8 TIL On 9/11, when all transport out of the city was shut down, citizen boat owners managed to transport over 500k people from Manhattan Island in an amazing act known as the “9/11 Boatlift”
YEQZ TIL On British Airways Flight 5390 the Captain was sucked out of the cockpit when a faulty window blew out at 17,300 ft. With only his legs remaining in the plane, the quick thinking crew held onto him for 22 minutes till they safely landed. He survived.
0dgyL TIL once commonly known as “the redwood of the east,” American Chestnut trees are almost entirely extinct in the wild as of the 1940s with the exception of small, scattered populations