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  ScienceNews.org: Top News  

Feud over family ties in evolution

Prominent scientists dispute kinship?s role in self-sacrifice among highly social creatures

Alzheimer?s trade-off for mentally active seniors

Stimulation delays cognitive decline, but disease advances quickly once it starts

Hints of altruism among bacteria

E. coli defend against antibiotics with a little help from their friends

Diabetes drug might fight cancer

In use for years, metformin has few side effects

Geomagnetic field flip-flops in a flash

Scientists unearth more evidence of superfast changes in Earth?s magnetic polarity

Science & the Public: Gloves may head off ?garden? variety pneumonia

Doctors have begun linking garden compost to an unusual source of Legionnaire?s disease