It’s important to note how silently the big tyrannosaur can move through the trees. Nature—through the vehicle of dinosaur behavior—continues to show itself as a force of unexpected revelation. And yet again, Grant demonstrates the proper scientific attitude, paying careful attention to the dinosaur’s behavior until he can form a hypothesis about its actions. In the attack on Ed Regis, the tyrannosaur shows that nature can be as cruel and inhumane as it is unpredictable.