› added 1 year ago

42

TIL humans can learn to observe their surroundings with echolocation. By snapping or clicking the tongue, humans can bounce sound waves off of nearby objects. The resulting echo reveals the approximate size and distance of the obstacle. Anyone with normal hearing can learn this skill.

Read more wikipedia.org

via reddit.com

LQvrP TIL that Desmostylia, extinct ancestors of manatees, had a unique way of feeding: they vacuumed seagrass from the seafloor by uprooting it entirely with their mouths. This distinctive feeding method likely contributed to their extinction as they competed with other marine herbivores.
LQOoP TIL Many western scholars were fond of the Khmer Rouge and some denied or still deny the atrocities committed by them
PYx9E TIL In the 1980's to compete with McDonald's quarter pounder, A&W introduced a third pound burger that did well in taste tests, but it didn't sell well because Americans thought a quarter pound was bigger than a third of a pound.
JKXm TIL a man sold all his possessions including his clothes, went to Las Vegas and bet the whole lot ($136,000) on a single game of roulette with 50/50 odds, and won.
WEVA TIL the Catholic Church did not always believe that human life began at conception