This might be one of the best known photographs in all biology. It's literally in every basic Biology textbook published.
Moths. Camouflaged. Cool, right?!
Evolution in progress!!
First reported and figured out in 1858 (that's Civil War era) in England (not Civil War there), a new study shows how good the original one was.
Here's the new article and new the new data. Again, it's a short article...go read it.