Gail Phillips of Lacombe holds a skull while asking Grade 6 students from Iron Ridge School in Blackfalds about a deer killed and eaten by coyotes along a J.J. Collett Natural Area wildlife trail Wednesday. Phillips and other natural area volunteer stewards are guiding 17 Wolf Creek Division school groups through the 360-acre preserve east of Morningside between Lacombe and Ponoka to investigate wildlife from the perspective of a crime scene investigator. After identifying a naturally significant scene, students use handouts and ask questions to help them determine what occurred there.