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TIL about Swyer syndrome where a born female appearing person can have both x and y chromosomes

Read more cancer.gov

via reddit.com

5Yry8 TIL beaver is considered safe to eat during lent by the Catholic Church.
E1vwd When humans see purple, we’re really seeing a blend of red and blue light. Hummingbirds see purple plus ultraviolet—and lots of other nonspectral colors. A new study found that the birds could see every nonspectral color that the researchers threw at them.
xVROo TIL there are trees in Japan that survived the Hiroshima/Nagasaki atomic bombings, one was only 740 meters from the hypocenter that completely destroyed the castle upon whose grounds it grew.
j4ep TIL in Kyoto, Japan there are five temples that have blood-stained ceilings. They use the floorboards from a castle where warriors killed themselves after holding off against an army for eleven days. You can still see footprints and outlines to this day.
jNjdn TIL about the Anti-Bloomberg law, which prohibits any county or city in Mississippi from passing laws to restrain portion sizes. It was passed as a response to the Bloomberg law, which limited the size of soda to 16 ounces or less.