SN Online

GENES & CELLS See a roundup of some of the latest discoveries about China’s H7N9 virus in “ New bird flu claims more victims .”

ENVIRONMENT
Lake Erie is loaded with tiny pieces of plastic containing toxic pollutants. Read “Puny plastic particles mar Lake Erie’s waters.”

HUMANS
Male attractiveness relies on a combination of body parts. See “Penis size does matter.”

CULTURE BEAKER
Rachel Ehrenberg analyzes how a CEO misunderstood shoppers in “The psychology of J.C. Penney.”