The Ubiquitous Hass Avocado

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iStock

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.

Climate Change Is Coming for America’s National Parks

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iStock

Climate Change Is Coming for America’s National Parks. Imagine Glacier National Park without a glacier.

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The Chimp Who Believed She Was Human. After being raised in a human home, it took years for Lucy to learn to be an ape again.

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The Mathematical Madness of Möbius Strips and Other One-Sided Objects. A look at the history of the mind-bending field of topology

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These 1930s Housewives Were the Godmothers of Radical Consumer Activism. They protested rising food prices with the Hamtramck Meat Strike.

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Disneyland’s Fantasyland Recreated in Incredible Detail in a Basement. A railroad engineer hand-crafted his own theme park over ten years.

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The Princess Who Worked at Macy’s. The Queen of Romania also built furniture, raised poultry, and enjoyed off-roading.

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America is on the Verge of a Nursing Crisis. Our nursing schools don't have the capacity to supply our current needs, much less our future needs.

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15 Amazing Animal Reunions. It's good to know that pets lost for years might find their way home.

Why Can We Hear Others' Footsteps, But Not Our Own?

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iStock

Why Can We Hear Others' Footsteps, But Not Our Own? Brain experiments shed light on our personal filters.

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Stilt Fishing in Sri Lanka. Homemade stilts driven into the sand make for a grueling yet productive haul.

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11 Horror Movies it's Safe to Watch With Your Kids. They don't cross the line from scary to traumatizing, but you'll still want to check the details.

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Tracing the Mysterious “Turks” of South Carolina Back to the Revolutionary War. Hundreds of descendants of Joseph Benenhaley still live in Sumter County.

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The Dad-Joke Doctrine. Clean and simple jokes are embarrassing, comforting, and they bond generations together.

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A Dog With Cancer Got a New, 3D-Printed Titanium Skull. Patches is a pioneer for what might some day be available for human patients.

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The Wardrobe Team at Saturday Night Live Works With No Margin for Error. Costume changes have been done in as little as 10 seconds.

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The 19th Century Manual That Claimed the Color Blue Could Cure All Ills. Augustus J. Pleasanton was responsible for the "blue glass craze."

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