News

  1. Animals

    Ants lurk for bees, but bees see ambush

    A tropical ant has perfected the un-antlike behavior of hunting by ambush, but its prey, a sweat bee, has developed some tricks of its own.

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  2. Physics

    Squirming through space-time

    In the exotic realm of curved space, the topography of space itself might provide a propulsion assist—albeit a tiny one.

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  3. Earth

    More Arctic clouds may lessen warming

    Nearly 2 decades of satellite observations suggest that an increase in Arctic cloudiness at certain times of the year may partially counteract the effects of global warming in the region.

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  4. Health & Medicine

    Plot thickens for blood pressure drugs

    A new study counters a recent report that diuretics taken for high blood pressure protect against heart problems better than newer, more expensive drugs.