PRIZE DETAILS: A six-day photo tour of Yellowstone and Grand Teton national parks that runs from September 22 to 28, 2012. Defenders of Wildlife will pay for domestic travel to and from the parks for the winner. The tour, courtesy of Jess Lee Photo Tours, includes lodging, ground transportation, guiding and field instruction

The other prize winners will receive gift certificates to B&H Photo Video in New York. The first-prize winner in each category will receive a $750 gift certificate, the second prize winner in each category will receive a $250 gift certificate, and the third prize winner in each category will receive a $75 gift certificate. Honorable mention winners will receive a Defenders of Wildlife hat. ELIGIBILITY: International / 18+ Not eligible to enter? - Find contest where you are.

COPYRIGHT: You will retain the copyright and all other rights to photographs you submit except for those rights specifically listed below USAGE RIGHTS: You are granting Defenders of Wildlife a non-exclusive, irrevocable, royalty-free license to publish the photographs you enter in editorial, educational, promotional and other uses. You also grant Defenders of Wildlife the right to use your name in connection with the photograph as well as in promotions and other publications associated with the contest.