Another thing too, Bear will basically kill and eat anything on the show. Even though he doesn't need to to actually survive, he still kills it and eats it. Like when he did to that turtle.
Les won't, he acknowledges it's not an ACTUAL need for survival. Les will state if this was a desperate need and he was actually trying to survive, he would eat it but he says since it's only for TV, he won't eat it. He eats the little shit, bugs or fish. He wouldn't go out his way to kill something that's unnecessary. That's another thing that I respect Les more for, acknowledging it's only tv and what's really needed and not.