This chapter presents a case study on Understanding Environmental Impacts on Species using the discovery engineering process. The case study focuses on the pika, a mammal related to the rabbit, and how, although pika are very sensitive to heat, a group were able to survive a wildfire by using available natural resources as a buffer. Students use data and maps to understand how environmental changes impact endangered and threatened species and create a model to illustrate the effects of environmental change. Last, students create environmental assessments to evaluate an action taken in their community and to evaluate the potential impacts of the action on local endangered or threatened species. A list of materials, teacher background information, teacher notes, references, resources, assessments, and standards are provided. This book selection also includes the Table of Contents, About the Authors, Acknowledgments, Introduction, and Index.