News
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EarthNanosized pollutants pose crop risks
Nanoparticles in exhaust and common consumer products can end up in soil and harm the growth and health of crops.
By Janet Raloff -
HumansGene may boost effects of peer pressure
DNA trait linked to tendency to be affected by high or low levels of alcohol and cigarette use in high school.
By Bruce Bower -
Health & MedicineOvulation spurred by newfound semen ingredient
A common growth-boosting protein may act as a pregnancy-protecting hormone in humans.
By Meghan Rosen -
LifeUnusual virus may tie snakes in knots
Captive snakes with a fatal disease harbor viruses never before seen in reptiles.