the mighty grizzly bear once on the brink of extension is now recovering, that is the good news. but today these incredible creatures are running out of wilderness and bears out of the need for survival are wandering into what is now human territory. >> one, two. >> reporter: why was this bear trapped today? >> this bear was frequently this ranch housing compound and almost every night for on and off for about a week. >> just look at this. i mean, it's just amazing. look at those claws. and those canine teeth can easily crush through bone. >> reporter: i assist the team in taking hair and blood samples. they'll be used to check the animal's health and genetic history. he'll also be fitted with this radio tracking collar. >> so, he's been collared, you've got your data, your information. what happens next? >> i think we have a good release site for him and we'll