Sen. Edward Kennedy announced his proposal for a national health care plan at the Capitol on May 15, 1979. Behind him, large charts illustrate rising health costs in the U.S. Charles W. Harrity/AP hide caption

itoggle caption Charles W. Harrity/AP

The perfume from an Australian king spider orchid attracts several male wasps. Christian Ziegler/National Geographic hide caption

itoggle caption Christian Ziegler/National Geographic

Dairy farmers are starting to think creatively in order to survive. At Hedgebrook Farm in Winchester, Va., customers invest in a cow, like this one, in exchange for a gallon of milk per week. Hedgebrook Farm owner Kitty Nicholas says if it weren't for the program, she wouldn't be able to exist by milking only 20 cows. Katie Hayes/NPR hide caption

itoggle caption Katie Hayes/NPR