Galápagos: A Natural History. John Kricher. Princeton University Press, Princeton, NJ, 2006. 256 pp., illus. $19.95 (ISBN 069112633X paper).

The Heretic in Darwin's Court: The Life of Alfred Russel Wallace. Ross A. Slotten. Columbia University Press, New York, 2006. 614 pp., illus. $22.95 (ISBN 0231130112 paper).

How Nature Speaks: The Dynamics of the Human Ecological Condition. Yrjö Haila and Chuck Dyke, eds. Duke University Press, Durham, NC, 2006. 344 pp., illus. $23.95 (ISBN 0822336960 paper).

Parrots of the World: An Identification Guide. Joseph M. Forshaw. Princeton University Press, Princeton, NJ, 2006. 400 pp., illus. $65.00 (ISBN 0691092516 cloth).

Principles of Animal Locomotion. R. McNeill Alexander. Princeton University Press, Princeton, NJ, 2006. 384 pp., illus. $39.50 (ISBN 0691126348 paper).

River and Stream Ecosystems of the World. C. E. Cushing, K. W. Cummins, and G. W. Minshall. University of California Press, Berkeley, 2006. 834 pp., illus. $75.00 (ISBN 0520245679 paper).

Self-organization in Complex Ecosystems. Ricard V. Solé and Jordi Bascompte. Princeton University Press, Princeton, NJ, 2006. 392 pp., illus. $45.00 (ISBN 0691070407 paper).

Spiders of North America: An Identification Manual. Darrell Ubick, Pierre Paquin, Paula E. Cushing, and Vince Roth, eds. American Arachnological Society, Dollco Printing, Ottawa, Canada, 2005. 377 pp., illus. $45.00 (ISBN 0977143902).

Trends in Bioinformatics Research. Peter V. Yan, ed. Nova Science Publishers, New York, 2006. 156 pp., illus. $79.00 (ISBN 1594547394 paper).

Trends in Chronobiology Research. Frank Columbus, ed. Nova Science Publishers, New York, 2005. 234 pp., illus. $129.00 (ISBN 1594544824 cloth).

Wildlife Ecology, Conservation, and Management. 2nd ed. Anthony R. E. Sinclair, John M. Fryxell, and Graeme Caughley. Blackwell, Malden, MA, 2006. 282 pp., illus. $79.95 (ISBN 1405107375 paper).