extrapolated from user review: The object is to be the first player to evolve along the 6 stages of evolution into man. You start as a lungfish. Over the course of a turn, you roll a die to determine if you get to mutate, and then move to run away from predators. Mutation is easier if you are in a warm climate. And if you are lucky enough to get a mutation card, you will either evolve, or pick up some mutation which can affect your movement or mutation abilities. At the end of your turn, you flip up a card which lets you move and introduce certain type of new predators, evolve predators, and move continents. Yes, the continents drift around the board, offering you chances to break a land bridge to strand your opponents on a plate along with a few hungry dinosaurs. Or drift yourself southward to bask and mutate in the sun. The only other twist is that predators can only eat during certain player evolutionary stages. So trying not to mutate can be a very good idea at certain stages of the game. Being eaten costs you an evolutionary stage-so picking on the leader can help keep the game even.