"I included them with the button.  It's not a theory I like to think about.  Whatever he used, it was good theater.  Once the lights came up behind him and here was a black-maned lion, lying as stately and sedately as if guarding library steps, while a couple of little lambs wobbled around him.  The lion just blinked and yawned.  Sure, Hollywood can tape that sort of special effect any day - but it looked real, so much so that I thought I smelled the lion... and of course that can be faked, too."