This clip could be used in a lesson based on determining how much evidence is need to prove something for sure. Questions such as "How can we be sure that dinosaurs fought in one way or another?" can be raised, with pupils asked to give their initial ideas (prior to watching the clip). Then, after watching and looking at the evidence, pupils can be asked again to explain their answer. They can then be asked whether, even with the evidence, they can be certain or whether they need further evidence.