I know this will sound cranky, and my apologies for that, but . . . it just irritates me that once again, they look at trying to find a treatment AFTER the damage is done instead of looking at the causes (inappropriate diet, anyone?) of the problem. And there's something they're forgetting: bears are omnivores. So even if they figure out how the bear kidneys regenerate, there's no guarantee that it can be applied to carnivorous pets like dogs and cats.