Wolves, bears, Canada lynx, and other animals are increasingly being killed in western Canada, causing some scientists to worry that species given strict protection in the U.S. might be in trouble when they cross over the Canadian border. In 1997, 12 grizzly bears, some of them considered essential to population stability in the border region, were killed or removed from Canada’s Pincher Creek area, just miles from the U.S. Americans have long taken it for granted that when they kill off their wild animals, fresh batches can be imported from Canada for reintroduction programs. But more and more, development and logging in southern Canada are putting pressure on species, and Canada’s lack of a law protecting endangered species doesn’t help matters.