This killer whale was pictured attacking a bottlenose dolphin off the Mexican coast. Photographer Christopher Swann captured the extraordinary scene.
Sumatran Tiger - This animal is one of fewer than 400-500 wild, critically endangered Sumatran Tigers . Steve Winter (US) was the winner of the Wildlife Photojournalist Award. He set up an auto-trap camera to catch this shot.
Under-water photography by David Doubilet (additional photos attached)