News
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Health & MedicineBlood Vessel Poisoning: Arsenic narrows artery that feeds brain
New research suggests that drinking arsenic-laden water can produce dangerous narrowing in the carotid artery, which channels blood through the neck to the brain.
By Ben Harder -
Health & MedicineScrambled Drugs: Transgenic chickens could lay golden eggs
Scientists have created transgenic chickens able to produce foreign proteins—and, potentially, pharmaceuticals—in their eggs.
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AnimalsLamprey Allure: Females rush to males’ bile acid
An unusual sex attractant has turned up in an analysis of sea lampreys, and it may inspire new ways to defend the Great Lakes against invasive species.
By Susan Milius -
Night Patrol for Tired Cops: Police lose sleep over workday hassles
A large proportion of big-city police officers suffers from insomnia and other serious sleep problems that stem from chronic work stress.