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Health & MedicineDengue strikes United States
Texas has been hit with the first-ever outbreak of dengue hemorrhagic fever in the continental United States.
By Nathan Seppa -
AnimalsIvory-billed hopes flit to Florida
There's no photo, but a team of ornithologists says that its sightings suggest that a few ivory-billed woodpeckers still live along the Choctawhatchee River in Florida.
By Susan Milius -
PhysicsElectromagnetism could ease the flow in oil pipelines
A few minutes of exposure to a magnetic or electric field sharply reduces crude oil's viscosity for hours at a time.
By Peter Weiss -
Itsy bitsy genome
Researchers have sequenced the smallest genome yet discovered, a string of DNA belonging to a species of bacterium that lives inside sap-eating insects' guts.