You are in the forested plains of North America, 66 million years ago.

You didn’t see it at first, only hearing the aggressive snorting coming from the bushes. Emerging from the ferns, the Stygimoloch—stopped and locked onto you, interpreting the foreign smell coming from you as a challenge. It didn't chase immediately, but stamped its feet and wagged its dome-head, showcasing the sharp rear spikes before deciding whether to ram the unfamiliar threat.