Imagine that winter is closing in. You and your clan have collected and eaten all the edible plants around you for miles.
You’re competing for food not only with other humans, but with other animals, too, and the herds have been growing smaller by the day. It’s time for you and your clan to leave. You'll spend tonight in a shelter made of reeds and branches found near your campsite.
Last summer and fall, life was a breeze. Tasty food was so easy to come by that finding the day’s food took just a few hours. Your clan might come back here next summer, but right now you’re heading for places where you found food last winter. You’re hoping for the best.