1966 Press Photo Penguins Joe and Vivian with first egg laid in zoo, Milwaukee

These are Joe and Vivian. As they are wearing identical tuxedos, we do not know for sure which is which. They are expectant parents and their offspring are due any day. Vivian was the first penguin to lay an egg in an American zoo. In fact, she laid two. The pair of Adelies takes turns sitting on the eggs, changing places two or three times a day. These pictures by Milwaukee Journal photographer Jack Hamilton show the changing of the guard.Milwaukee Zoo

Photo is dated 1966.

Photo measures 10 x 8.25 inches.