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  1. Animals

    The Sonoran Desert toad can alter your mind — it’s not the only animal

    Their psychedelic and other potentially mind-bending compounds didn't evolve to give people a trip.

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  2. Climate

    There’s good and bad news with California’s electric vehicle program

    The electric vehicle program is reducing carbon dioxide emissions but also shifting the pollution burden to the state’s most disadvantaged communities.

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  3. Space

    50 years ago, cosmic rays may have caused Apollo astronauts to see lights

    Apollo astronauts reported seeing flashes of light where there were none. Fifty years later, the flashes still mess with modern astronauts’ vision.

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  4. Life

    In one lake deep under Antarctica’s ice, microbes feast on ancient carbon

    Microorganisms living in a lake beneath the ice sheet in West Antarctica feed on ocean carbon that was deposited 6,000 years ago.