How the Hass Avocado Conquered the World. There are other varieties of avocado, but you won't see them at most groceries.

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The Dangerous Stink of the World's Smelliest Chemical. Experiments with thioketones can cause disturbing neighborhood backlash.

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Tacopaj is the culinary love child of Sweden and Mexico. Invented in 2000, it's a cross between a taco and a quiche.

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Relative Genius. Meet the very accomplished people who were overshadowed by a family member.

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The Accidental, Slightly Controversial, but Mostly Fun History of the Super Soaker. It was a side effect of some serious engineering research.

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Nineteenth-century Manhattan was also home to pigs that roamed the streets while the human population of the city exploded. The battle against the hogs became an early example of gentrification.

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5 Horrifying Tragedies Behind Everyday Routines. The precedent that sets the standard is often lost to memory.

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Washington's secret Doomsday plans. During the Cold War, our government developed a strategy to survive Armageddon.