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  1. Animals

    Streaked shearwaters poop only while flying over the ocean

    In-flight defecation may help the birds stay away from feces that can contain pathogens such as bird flu while also fertilizing the ocean.

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  2. Space

    Astronauts need oxygen. Magnets could help

    Adding a magnet could simplify the process of producing oxygen in space, making a crewed mission to Mars more feasible.

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  3. Archaeology

    Ancient hominids made long road trips to collect stone for tools

    A Kenyan site shows early hominids transported stone 13 kilometers for toolmaking as early as 2.6 million years ago.

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  4. Astronomy

    The oldest known black hole formed more than 13.3