The students in a classroom find a bone while out walking and bring it to class to try to determine what animal it belongs to. They make various hypotheses, including that it belongs to a boar, deer, or dinosaur. After taking photos and measuring the bone, the teacher responds that it is likely the lower jawbone of a carnivore, noting characteristics like sharp canine teeth and a large carnivore molar tooth. She determines it is probably from a fox or dog, but not a wolf, as wolves have not lived in the local forest for many years. The students are happy to have their question resolved.