Koalas from Lone Pine Sanctuary are given to the San Diego Zoo as a Bicentennial gift from Australia to the U.S. Arriving at the San Diego airport are: Paul Robertson (top left) and Pat Robertson of Lone Pine, carrying the male koalas, Cough Drop and Waltzing; Zoological Society director Chuck Bieler (center); and Zoological Society board president Ivor de Kirby.