SN Online SN Online Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Science News May 2, 2013 at 4:48 pm 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.”