This activity (page 3 of the PDF under SciGirls Activity: Dinosaurs) is a full inquiry investigation into fossil hunting and identification. Groups of learners will sift through a commercially prepared owl pellet, looking for bone pieces that they will attempt to match to an identification chart and subsequently arrange into a rough skeleton. Learners use this exercise to consider how animal skeletons help researchers determine what kinds of animals live together in an ecosystem as well compare the bones they find to the bones in their own body. Relates to linked video, DragonflyTV GPS: Dinosaurs.