› added 9 years ago

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TIL that until 11,000 years ago milk was toxic to humans, that the only way we could consume it was lowering the lactose levels by turning it into cheese, that today only one third of adults are lactose tolerant, and that the closer you get to the equator the lower the tolerance level is.

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X0jnk TIL before the Great Depression (1930's), the US President at the time came up with a tariff strategy called the Hawley Tariff Act, despite warnings against it. It was imposed on many other nations, including Mexico and Canada, who then retaliated with their own tariffs, causing worldwide suffering.
woEb6 TIL dead skin cells are a main ingredient in household dust
OoZKL TIL that 4 sailors survived at sea off the coast of New Zealand for 118 days after their trimaran, the Rose-Noelle, was upturned by a rogue wave. They cut holes in the hull, collected rainwater, and eventually caught and cooked fish. They were in such good shape upon return many doubted their story.
b6vxj TIL of the Cross Border Xpress at Tiajuana International Airport, a 390 foot bridge over the US-Mexico border where passengers can park on the American side, clear customs, cross the bridge, and board a plane that departs on the Mexican side all without ever leaving the same airport.
xVZkw TIL that the platypus uses its bill to navigate underwater, detect food, and dig. The bill contains receptors that help detect prey.