Accompanied by armed guards,he was used to walking through wild places full of dangerous animals in South Africa.

Accompanied by armed guards,he was used to walking through wild places full of dangerous animals in South Africa.

He said that he always felt cautious on those trips, 

Grizzly bears are back in the Wind River Range, 

100 miles of craggy peaks southeast of Yellowstone National Park.

The big bears once owned the West, and now they're reclaiming some of their traditional turf.

At its peak, approximately 50,000 grizzly bears were seen roaming the western United States.

By the time the Endangered Species Act was passed in 1975, their numbers had dropped from 1,000 to less than 48.

And they have inhabited only 2% of their former range there.