there you go, sweetheart. >> reporter: during her spare time, betty white was a tireless advocate for the humane treatment of animals, serving with animal-related charities and on the board of the los angeles zoo. >> we're such a throwaway society. we treat even our animals like paper towels, you know, if it doesn't work out, you throw it away. >> reporter: white's own career seemed to have remarkable staying power as a new generation of fans loved her in films like "the proposal." >> let's see if we can find your boobs. they're in there somewhere. >> yes, they are. >> like an easter egg hunt. >> reporter: well into her 80s, white showed no sign of slowing down, with appearances on late-night comedy shows and commercial work. >> you're playing like betty white out there. >> that's not what your girlfriend said. >> reporter: the screen actors guild presented betty white with its lifetime achievement award in 2010. >> this is the highest point of