Leopard seals are aggressive predators, and National Geo photographer Paul Nicklen didn't quite know what to expect when he slid into the freezing Antarctic water with the largest leopard seal he'd ever seen. The leopard seal took Nicklen's head and camera into her mouth. But he couldn't believe what happened next.
Watch
this video to find out.
Link
http://ngm.nationalgeographic.com/video/player#/?titleID=1861199205&catID=3
Crikey!