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  1. Animals

    Sea butterflies’ shells determine how the snails swim

    New aquarium videos show that sea butterflies of various shapes and sizes flutter through water differently.

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  2. Science & Society

    Creative school plans could counter inequities exposed by COVID-19

    Many K–12 schools this fall are virtual, which could widen the nation’s already large opportunity gaps. What are schools doing to reach all students?

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  3. Computing

    How next-gen computer generated maps detect partisan gerrymandering

    The U.S. census will trigger a new round of redistricting beginning in 2021. Researchers have developed numerous tests to identify gerrymandering.

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  4. Where do we draw the line between life and death?

    Editor in chief Nancy Shute writes about the challenges of defining brain death and the first GM mosquitoes in the United States.