An aerial view of catfish ponds in Louisiana resembles an abstract painting. The color differences between ponds can be correlated to the number and type of algae present within the ponds. USDA photo by Scott Bauer.
Know your seafood infographic. I like the contrast between the red and green since one side tells you what seafood is good to eat and the other side tells you what isn't. I could see this being part of an article that has a seafood recipe.