Globe and Mail: As a species, the polar bear is a relatively simple animal. It spends half its time hunting. It feasts on seals for nearly 100 per cent of its calories. And it has no predators but humans. As a political issue, however, the big bears are the Iraq of the animal world. A hodgepodge of federal, provincial and territorial governments, Inuit groups, researchers and environmental organizations all perform some jumbled role in the well-being of the world’s largest …