› added 4 years ago

154

TIL that dogs tuck their tail because they are trying to hide fear pheromones that are released by their anus. Similarly, they wag their tail to spread joy pheromones also released by their anus.

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nP7o TIL that at the behest of the military, the FDA did a study determining that most drugs are still safe and effective many years past the expiration date stamped on the package.
b6LEa TIL of "su filindeu" ("Threads of God"), a pasta so intricate it's considered one of the rarest pastas in the world. Made by only three women on Earth, attempts by others to recreate the techniques involved in its creation have proven impossible.
8avWb TIL of "The 2904 Run" which is a NY to LA car race inspired by the Cannonball Run. The objective is to drive the 2904 miles from New York to California on a budget of $2,904 and that includes the car, fuel, toll, tickets, food, etc... The current record is 32 hours and 5 minutes
xdgg TIL Over 4500 missiles were fired at the SR-71 over 25 years without a hit
b99kE TIL plague doctors in the 17th century wore a bird-like mask filled with dried flowers and spices to keep away bad smells, which were thought to be the principal cause of disease. This was later disproved by Germ Theory.