Denmark: Close-up shot of a Grey Seal (Halichoerus grypus) tipping its nose out of the water while swimming towards the camera.
This image is from Nordic Wild.
SCREEN GRAB: Nearly 40 feet long and weighing up to 20 tons, the mysterious whale shark is the largest fish in the sea. Ironically, its survival depends on some of the tiniest creatures. This image is from Great Migrations.
SIBERIA, EAST RUSSIA - Uwe Anders (right) and his assistant Anatoly Ryzhow spent three months on Wrangel Island in the far northeast of Russia. This image is from Wild Russia.