Close Encounter With a Leopard Seal - Paul Nicklen

National Geographic photographer Paul Nicklen followed up his famous video of being fed by a leopard seal with another, less nurturing experience. This year, he was photographing Emperor penguins in the Ross Sea when he noticed a seal watching him from the water. In the next instant, the seal launched itself from the sea, and knocked him flat on his back. He tells Boyd about his surprising encounter.