i went to muhamad ali's house and i took a big kodiak named brody -- >> stephen: you took a bear to muhamadouth and he said, you crazy! when muhamad ali tells you you're crazy, you're probably crazy. >> stephen: how do you get started working with bears? what is the work you're doing with these bears? >> well, in the past, i did a lot of commercials and tv shows, but my interest was always in interacting with them. it was never in doing commercial projects. that facilitated feeding the bears. they're expensive animals. we're taking two captive born and raised bears and seeing if i can release them into the wild. can i teach them what they need to know and what instinctively will come to them when they get to the wild? >> stephen: how did you get started with the bears? these are two grizzly bears you have now? >> yes. >> stephen: do you work your way up? do you start with gummia bears and work your way up? koala bears? you didn't just jump into a pit with bears, right? >> well, my high school counselor didn't say i would be a bear trainer. i had a disease that paralyze med when i was 20 yea