National Geographic photographer Joel Sartore recently photographed the American bison Mary Ann at the Oklahoma City Zoo, for his ongoing Photo Ark project. Through his Photo Ark, Sartore is trying to take portraits of every animal species in captivity. Photo provided
Joel Sartore's "The Photo Ark" The Photo Ark is an ever-evolving collection of studio-style portraits of creatures great and small. My goal is to help you to look these species in the eye, to see each one as unique and valuable, while there’s still time to save many of them.