Each type of dinosaurs you draft has its own scoring rules, earning or costing points depending on the number of these specific cards you gathered at the end of the round. To score higher than your opponents, you must decide each turn whether you want to play the hand of cards you were offered, or to pass it to the next player. But declining a hand has a real cost: you must be able to add a new card to it, taken from your dinosaurs herd – and this card has to be different from all other cards already in this hand. If you're smart, you can turn this to your advantage and get rid of the cards negatively impacting your collection. If you want a chance to win, you'll also have to avoid being left with no other choices than taking the worst hands…
—description from the publisher