You are in the polar forests of Australia, 115 million years ago.

The air in the rift valley wasn't just cold; it was biting, tasting of wet pine and distant snow. It was technically "day," but here in the polar circle, the sun was just a weak, grey bruise hovering on the southern horizon.

You stopped, adjusting the fur trim of your hood, and waited for the sound. It came: a soft, rapid clicking, like pebbles rattling together, mixed with a high-pitched chirping.

Movement in the frozen fern undergrowth. Suddenly, they were everywhere. A dozen small, bipedal creatures, no bigger than a large turkey, exploded from the shadows of a giant fern. They were Leaellynasaura. Their bodies were covered in a thick, fluffy coat of brownish-grey feathers that looked incredibly soft, ending in long, stiffened tails that swayed for balance as they ran.

You froze, knowing these creatures were skittish. They didn’t run like birds; they skipped, agile and intelligent, scanning with enormous eyes that allowed them to navigate in this relentless gloom.

One of them, perhaps a young one, stopped just three meters away, tilting its head. You see the detail of its large, specialized eyes in the twilight, adapted for winter nights, and the fine feathers around its neck shivering in the wind. They were not afraid of the cold—they belonged here—but they were acutely aware of their surroundings.