You are in the forests of North America, 152 million years ago.

The air in the Jurassic fern prairie was heavy, lacking the comfort of a herd of sauropods. You stood frozen behind a massive conifer, watching a lone Stegosaurus browsing alone. It wasn't the slow, docile creature often imagined. The plates along its back were flushed a deep, agitated crimson, blood pumping into them to create a vibrant, terrifying display of warning. And the massive spikes—nearly three feet long—at the end of its tail, swung in lazy, yet intimidating arcs, proving that it was far from being defenceless…