Yellowstone's last original Canadian wolf shot

The last of the Canadian grey wolves brought to Yellowstone National Park in the mid-1990s was shot and killed last week after attacking young cattle.

The female wolf was part of a pack of about 30 grey wolves brought to Yellowstone from Alberta and British Columbia in 1995 and 1996 to help control expanding deer and elk populations.

U.S. Fish and Wildlife officials shot the wolf after she was injured and separated from the pack.

"Because of that...she was preying on livestock instead of wild prey," said Ed Bangs. "Once they start down that path you are better off getting rid of them so they don't pass that behaviour to other wolves."

Jon Robinett, a cattle rancher near Dubois, Wyoming, says he's lost tens of thousands of dollars to wolves in the past 10 years.

"We've lost cattle, we've lost dogs and we've lost some horses. We had an 11-day-old colt killed," said Robinett.

Close to 760 wolves now live in the region, but now no member of the original Canadian pack remains alive.

The U.S. Fish and Wildlife department says it could soon remove the wolf from the endangered species list.