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ClimateBoreal forests shift north
As forests move northward and to higher elevations, they alter ecosystems and threaten to further heat the Arctic's already warming climate.
By Janet Raloff -
LifeProtective protein
Discovering how bacteria defend themselves from foreign DNA might improve techniques for using microbes as little factories to make human proteins.
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ChemistryPhlegmatic molecules
Time-lapse snapshots of molecules show that they change shapes less often than theory predicted.
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AnimalsWild innovation
Researchers have published a rare description of a wild chimpanzee devising and modifying a novel form of tool use.
By Bruce Bower -
AstronomyGalaxy’s youngest supernova
Astronomers have found the youngest Milky Way supernova remnant ever recorded from Earth.