40000 bc a great ice age is ending another titanic struggle for global supremacy has unwittingly commenced between the animal species dominant species the card game is a fast playing game that abstractly recreates a tiny portion of ancient history the ponderous rescinding of an ice age and what that entails for the living creatures trying to adapt to the slowly changing earth players will use six major animal classes mammal reptile bird amphibian arachnid or insect to further their