Contents

17 May 1985
Vol 228, Issue 4701

About The Cover

Silhouettes of most of the extinct late Pleistocene Australian vertebrate species, drawn to scale. The height of the kangaroo in the center of row 5 is about that of an adult human male. [From Peter Murray, “Extinctions downunder: A bestiary of extinct Australian late Pleistocene monotremes and marsupials,” in Quaternary Extinctions (Paul S. Martin and Richard G. Klein, Eds.), reviewed on page 870]