As you may know, the polar bear is the largest land carnivore on the planet. It can run as fast as a race horse, has an incredibly keen sense of smell, and is the type of bear most likely to prey on humans. We encountered lots of them. In fact, the doctor who accompanied Hammond’s team, and who travels to the Arctic Circle every year, said he’d seen more bears on this trip than any other he’d made. The shotgun wasn’t for show.