Michael L. Cain is an ecologist and evolutionary biologist who is now writing full-time. Michael earned an A.B. from Bowdoin College, an M.Sc. from Brown University, and a Ph.D. from Cornell University.

As a faculty member at New Mexico State University, he taught introductory biology, ecology, evolution, botany, and conservation biology.

Michael is the author of dozens of scientific papers on topics that include foraging behaviour in insects and plants, long-distance seed dispersal, and speciation in crickets. He is a coauthor of Campbell Biology in Focus and of an ecology textbook.

Steven A. Wasserman is Professor of Biology at the University of California, San Diego (UCSD). He earned an A.B. from Harvard University and a Ph.D. from MIT. Working on the fruit fly Drosophila , Steve has done research on developmental biology, reproduction, and immunity.

Having taught genetics, development, and physiology to undergraduate, graduate, and medical students, he now focuses on introductory biology, for which he has been honored with UCSD’s Distinguished Teaching Award. He is a coauthor of Campbell Biology in Focus .

Lisa A. Urry is Professor of Biology and Chair of the Biology Department at Mills College. After earning a B.A. at Tufts University, she completed her Ph.D. at the Massachusetts Institute of Technology (MIT). Lisa has conducted research on gene expression during embryonic and larval development in sea urchins.

Deeply committed to promoting opportunities in science for women and underrepresented minorities, she has taught courses ranging from introductory and developmental biology to a nonmajors course called Evolution for Future Presidents. Lisa is a coauthor of Campbell Biology in Focus .