Kevin Schafer, a Seattle-based nature photographer, was featured in the July 2009 issue of National Geographic magazine for his photographs of Amazon River dolphins. One of Schafer's unpublished dolphin portraits also won the top prize in the mammal behavior category at the BBC Wildlife Photographer of the Year competition. His work has been published in Smithsonian, Natural History and National Wildlife magazines.

Photo caption: Endangered Amazon River dolphins, known in Brazil as botos, were the unusual subjects featured in the July 2009 issue of National Geographic. This image, shot by Kevin Schafer, shows how this normally gray-colored species appears orange in the tea-colored river water.