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TIL that snails can be left handed, where their shells are coiled counter-clockwise, and they can only mate with other left handed snails due to their genitals also being on the opposite side.

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oRWkW TIL Red-Eyed Tree Frogs use “Flash Coloration” which describes when an organism displays certain colors at rest versus in motion. When the frog is startled, it can flash its bright red eyes, orange webbed feet, and blue/yellow lateral stripes, which startles predators and allows the frog to escape.
5YNO8 TIL the Apollo 11 crew had to fill out a US customs form after returning from the moon
wLA0J TIL there are HUNDREDS OF BILLIONS OF LOCUST SWARMING EAST AFRICA!!!!
MwXa TIL despite several ludicrous rumors saying he had died from a heroin overdose, been hit by a car, and even been replaced with a doppelgänger, Steve from Blue’s Clues left the show simply because he was going bald.
69ML8 TIL about the Luhn algorithm or Luhn formula, also known as the "modulus 10" or "mod 10" algorithm, named after its creator, IBM scientist Hans Peter Luhn - a simple check digit formula used to validate a variety of identification numbers including credit card numbers.