Mar 15, 2012 04:41 PM EDT
With Climate Change, US Could Face Risk from Chagas Disease
In the spring of 1835, Charles Darwin was bitten in Argentina by a "great wingless black bug," he wrote in his diary.
"It is most disgusting to feel soft wingless insects, about an inch long, crawling over one's body," Darwin wrote, "before sucking they are quite thin, but afterwards round & bloa...