I picked this individual out of a cluster of marine iguanas on Fernandina in the Galapagos Islands (notice the others nearby). The angle made it appear as though he was smiling - perhaps he had a full belly or was in the middle of a great dream! Shot handheld using a Nikon D7000 and Nikkor 18-300mm VR lens at 300mm, f/5.7, 1/50 sec, and ISO 800.

Mike Stevens
South Riding, VA