During each round, prey must collect food tokens and bring them to their permanent shelter. They may bring only one token each trip. Predators must capture at least two prey animals by tearing a life from the shoulder. Captured prey go to the prey cemetery on the sidelines. Prey are safe from capture when standing in the permanent or any of the temporary shelters, but predators may go anywhere else in the play area.
Prey have one other defensive option.
They may freeze whenever a predator approaches within two metres. In the freeze position, the only things prey may move are eyelids. As long as a prey animal remains frozen, a predator may not capture him. Once the prey moves. In this activity, patrols prepare a pictorial record of some of the natural phenomena they've observed during past projects.