View the entire collection of winning images from the 56th World Press Photo Contest. The winners were selected from over 100,000 images submitted to the contest.
The flightless emperor penguin is capable of becoming airborne, by swimming at up to three times its normal speed, and launching itself from the water to clear the edge of a shoreline. Recent research shows that the penguins do this by releasing air from their feathers, in the form of tiny bubbles.
Whale sharks (Rhincodon typus) are slow-moving, filter-feeding sharks found in tropical and warm oceans, and are the largest non-mammalian vertebrates on the planet.