Back caption: The winner! / Bronx Zoo, New York City / Andy, the orang-utan from Borneo, may give the impression that he is the victor over little Sandra, his companion in the Bronx Zoo's Great Apes House. The facts are quite different. Andy does take the choicest grapes at feeding time, and if there is any "showing off" to be done before visitors, Andy does it. But Sandra lets him carry his masterfulness just so far--no farther.