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TIL: Ducklings have two sets of visual memory, able to recognise images in one eye that they don't recognise in the other.

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j64ga TIL the first antitoxin for botulism was harvested from the blood of a single horse, named First Flight, for 15 years until 1993.
AP4 TIL the actual normal human body temperature is 97.9 °F, not 98.6 °F (as is commonly cited), because someone rounded before converting their units.
eEGE TIL a faith-healing cult in Indiana in the 1970s and ‘80s caused at least 90 medically preventable deaths.
pO6Z TIL humans are unlikely to sink entirely into quicksand due to the higher density of the fluid: quicksand has a density of about 2 grams per milliliter, while human density is only about 1 gram per milliliter. A human would descend about up to their waist, but no further.
nWrEo TIL the raft Kon-Tiki journeyed across the Pacific Ocean from South America to the Polynesian islands in 1947