News
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AnimalsAnts 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.
By Susan Milius -
PhysicsSquirming through space-time
In the exotic realm of curved space, the topography of space itself might provide a propulsion assist—albeit a tiny one.
By Peter Weiss -
EarthMore 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.
By Sid Perkins -
Health & MedicinePlot 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.