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TIL that women's tears contain chemicals that decrease sexual arousal and lower testosterone levels in men.

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v1VyK TIL The Black War was a period of violent conflict between British colonists and Aboriginal Australians in Tasmania from the 1820s to 1832. A bounty of ₤5 was paid for every captured Aboriginal and ₤2 per child. Historians debate whether the war should be defined as an act of genocide.
0wxXA TIL that due to their high alcohol content, fragrances like cologne and eau du toilette can be used like a hand sanitizer.
XEVgR TIL Grizzly bears' muscles suffer no atrophy despite months of inactivity in hibernation; scientists discovered that non-essential amino acids (NEAAs) regulated by particular grizzly bear muscle proteins allowed muscle growth during inactivity.
LNop TIL there’s a giant hole called the Devil’s Kettle that swallows half a river and no one has any idea where it goes. Over the years, researchers and the curious have poured dye, pingpong balls, & logs into the kettle, then searched for any sign of their reappearance. So far none has ever been found.
eVOJ TIL Sugar was first added to chewing gum in 1869. Ironically, a dentist named William Semple was behind the decision.