I knew that we needed something dramatic for what would inevitably be a centerpiece of the hall. And these are two dinosaur species that co-existed 68-66 million years ago in western North America, so it would represent a possible real-world interaction, but we've deliberately left the scenario open, as to whether this represents T. rex killing Triceratops or scavenging an already dead individual. The idea is to better portray the role of an apex predator, which is often opportunistic. In life, I imagine that even T. rex would have favored easier meals than a healthy, adult Triceratops – if such were available: young or sick or elderly individuals, for example.