Narragansett and Standard Bronze heritage breed turkeys browse at a farm in Westport, Mass. Stephan Savoia/AP hide caption

itoggle caption Stephan Savoia/AP

A jury member feels a piece of duck foie gras during a contest of local producers and producers from southwestern France. BOB EDME/ASSOCIATED PRESS hide caption

itoggle caption BOB EDME/ASSOCIATED PRESS

Animal Kings: Ants, like these workers carrying eggs to a plant's leaf after rain flooded their nest, have a combined biomass estimated in the billions of tons. Gurinder Osan/AP hide caption

itoggle caption Gurinder Osan/AP