After more than 20 years with the National Geographic Society, and 31 stories in the National Geographic magazine, Joel Sartore has worked on every continent, covered everything from remote Amazon rain-forest to beer-drinking firefighters in the U.K. Sartore’s interest in wildlife started in childhood, when he learnt about the very last passenger pigeon from one of his mother’s Time-Life picture books. His first National Geographic assignments introduced him to nature photography, and also allowed him to see human impact on the environment firsthand. Sartore’s work now focuses on endangered species, natural history and land use issues. He has published several books, including Let’s Be Reasonable, Photographing your Family, Face to Face with Grizzlies, Nebraska: Under a Big Red Sky and RARE: Portraits of America’s Endangered Species. Besides his work for National Geographic, Sartore has worked on assignments for Audubon, Geo, Newsweek, Sports Illustrated, Time and has contributed to numerous book projects. He and his work have been the subject of many radio and television broadcasts, including Anderson Cooper, the BBC, National Geographic’s Explorer, NBC Nightly News and the CBS Sunday Morning Show. His work has also been the subject of an hour-long PBS documentary, At Close Range, On Assignment with National Geographic.