Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.


About the Cover


Two species of North American cats. (Top) Restoration of extinct, cheetah-like cat (Felis trumani), late Pleistocene, North America; (bottom) living mountain lion (Felis concolor), late Pleistocene and recent of North and South America. See page 981. [Drawings by D. Adams]


[Table of Contents]


To Advertise     Find Products


Science. ISSN 0036-8075 (print), 1095-9203 (online)