Photography makes an easy and excellent tool for teaching field biology courses, allowing students to study nature without harming it. This photographic technique is used in capturing images of vertebrates, invertebrates, and plants during class field trips, then making these images available for students to identify and study from a departmental web page. In this article, the authors discuss how they used digital photography for capturing images of animals encountered in the field and how the technique has evolved and improved over the past few years. They also provide recommendations that will save several rolls of film (and much frustration) regarding the use of photography. (Contains 4 figures.)