Consisting of more than six thousand species, amphibians are more diverse than mammals and are found on every continent save Antarctica. Despite the abundance a

The third edition of this successful textbook looks again at the influence of natural selection on behavior - an animal's struggle to survive by exploiting reso

""à required reading for anyone interested in the economy, ecology, and demography of human societies."" --American Journal of Human Biology ""This excellent b

Announcements for the following year included in some vols.