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Scientific American

This bull and donkey show interspecies homosexual bonds can run deep

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How to tell if a voice recording is AI-generated

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Ebola update, AI math scoop and permanent daylight saving time

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These tattoos can magically' disappear—here’s how they work

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How your brain can turn your own reflection into something unrecognizable

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How to ‘fall back’ this weekend without losing your mind

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Boo! See the universe’s spookiest sights in time for Halloween

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Math Puzzle: Mysterious pyramid

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The world’s biggest cities are sinking. Is yours one of them?

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‘Paleo lighting’ can fix your brain’s clock after daylight savings

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This October is on track to be the hottest ever recorded

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An exclusive conversation with the developer of REA, the viral AI reverse engineering tool

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What’s the scariest thing in the universe?

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The science of why we’re obsessed with vampires

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Oldest known Mars rock is a ‘Rosetta stone’ for the Red Planet’s watery past

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Scientists can now rewire living brains

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Five things you need to know about the Trump administration’s rollback of methane regulations

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Mathematicians find an infinite number of Ramanujan equations

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Can the world’s religions survive the existence of aliens?

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RFK, Jr., loosens restrictions for six popular peptides, bypassing the FDA

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Landmark study finds three in four NFL players die with CTE

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Sci-fi horror collides with small-town politics in John Scalzi’s Monsters of Ohio

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Animal-borne Shamonda virus infects and kills a human for the first time

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Why science is on the ballot in the 2026 midterm elections

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7 spooky bat facts—right in time for Halloween

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The Vera C. Rubin Observatory may have just discovered our solar system’s sixth dwarf planet

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OpenAI just scooped human researchers on a million-dollar quantum math problem

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How a 16th century pirate accidentally spawned a centuries-old math problem

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CDC deputy director Jennifer Shuford resigns after just four months in the role

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Dueling proofs from OpenAI and Anthropic astound scientists

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Sleep and depression may be more intertwined than we thought

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Underwater data centers may be coming to the U.S.—smack in the middle of endangered whale habitat

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Why we’ll never have another Black Death

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Anthropic’s S-1 filing spotlights safety fears and science ambitions ahead of IPO

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How birds can quietly spread a severe form of pneumonia

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What is trypophobia? Why some people's skin crawls when they see tiny holes

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Snakes that cartwheel, vultures that groan, a mysterious Martian moon, and more

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Why partisan politics may be changing people’s accents

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Meet the original Ghost Busters—the 17th-century scientists who investigated hauntings

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Math Puzzle: Ring of liars

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NASA lays out a packed 14-day schedule for 2027’s Artemis III moon mission

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Warhound wants to engineer and clone military superdogs—can they do it?

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Strange triangular craft reported in new U.S. government UFO release

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The Trump administration is considering a ‘heat ray’ weapon for the border—here’s what to know

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How exposing yourself to your fears can tame your anxiety

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Japan’s MMX mission will reveal the origins of weird Martian moons

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RFK Jr. promised to define ‘ultraprocessed’ food. What's taking so long?

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How the brain handles uncertainty, and why resilience matters

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Here’s what the new Merck-Moderna mRNA cancer vaccine data actually show

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RFK, Jr., adviser Calley Means announces his resignation from the Trump administration

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