A bestseller in its first edition but now long out of print, this book introduces undergraduate students to the developments and key techniques in mathematical biology. It provides comprehensive coverage of the tools of differential equations, including the fundamental techniques of nonlinear differential equations and wide-ranging examples of applications in mathematical biology. The new edition includes a full chapter on modelling biological phenomena along with ample coverage of numerical techniques using MATHEMATICA. With its flexible presentation, this text equally suits courses in differential equations, courses in biological modelling, and courses in differential equation models of biology for life science students.