From Back of Box:'Predator is a whole new idea in card decks based upon the natural food relationships in a temperate zone forest. An animal takes what it eats and is taken by what eats it. Plants, as basic producers of food score higher energy points than animals. Play a variety of food chain games and adaptations of old favorites. Card deck of 40 illustrated cards. 2-6 players. Ages 8 and up.' - BoardGameGeek