News

Earth

Nanosized pollutants pose crop risks

Nanoparticles in exhaust and common consumer products can end up in soil and harm the growth and health of crops.

Humans

Gene 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.

Health & Medicine

Ovulation spurred by newfound semen ingredient

A common growth-boosting protein may act as a pregnancy-protecting hormone in humans.

Life

Unusual virus may tie snakes in knots

Captive snakes with a fatal disease harbor viruses never before seen in reptiles.