Science Stats

  1. Earth

    Earth’s rivers cover 44 percent more land than we thought

    A global survey of rivers and streams based on satellite data suggests that these waterways traverse about 773,000 square kilometers.

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  2. Animals

    Leaf-cutter ants pick up the pace when they sense rain

    Leaf-cutter ants struggle to carry wet leaves, so they run to avoid rain.

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  3. Health & Medicine

    Blame opioids for a fifth of young adult deaths in the United States

    Of young adults aged 25 to 34 who died in 2016, 20 percent of those deaths were opioid-related.

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  4. Climate

    Globetrotting tourists are leaving a giant carbon footprint on the Earth

    Globetrotters are responsible for about 8 percent of the world’s greenhouse gas emissions.