Feeling Blue? So is This Ant

Blue is a rare color in the biological world. It is particularly difficult for most organisms to produce blue pigment, for reasons that are still mysterious, but even structural blue produced by refracting light is fairly rarely seen in nature. This ant doesn’t really care about all that:

blueant
Photo: Paul Bertner

This ant, Polyrhachis cyaniventris, is metallic blue. Enough said.