Paul Nicklen, a contributing photographer for National Geographic, talks about his incredible 4 day sea adventure photographing a giant leopard seal. It is the top predator in the Antarctic, with large K9 teeth, and a head double the size that of a polar bear. You'd assume it's instincts would be that of many other top predators, which is to consume prey that they're able to kill. However, Paul Nicklen's experience was rather playful and peaceful.