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TIL that Johnny Nash, famous for his song "I Can See Clearly Now" (1972), sang the theme song for the 1960s cartoon "The Mighty Hercules".

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PJdw TIL the primitive immune system of a horseshoe crab makes them useful to humans. Every drug certified by the FDA must be tested using an extract from their blood cells. Their blood is worth ~$15,000 a quart. A horseshoe crab can be bled, returned to the ocean, and after time, can give blood again.
PPaZ TIL Australia has claimed the largest territory of Antarctica
l7OWa TIL about psoralen, a compound found naturally in foods such as parsley, celery, and citrus fruits. It increases the skin's sensitivity to sunlight and makes it more prone to sunburn
BgKkx TIL about the Apple Eight car-a short-lived American automobile manufactured by the Apple Motor Car Company in Dayton, Ohio, from 1915 to 1917.
R7ZQ7 Today I learned Brazil is bigger than continental United States.