Now in its 13th year, BigPicture encourages photographers from around the world to contribute their work to this competition that both celebrates and illustrates the rich diversity of life on Earth and inspires action to protect and conserve it through the power of imagery. Chaired by award-winning conservation photographer Suzi Eszterhas, BigPicture welcomes high-quality nature, wildlife and conservation images and is open to all photographers around the world. Enter your work for a chance to win cash prizes and be exhibited at the California Academy of Sciences.