The game board is set up to follow the invertebrate phyla from the simplest (Porifera -sponges) to more complex (Echinoderms - starfish). The information on the space corresponds to the phylum. Includes a Durable Game Mat, 36 Question Cards, Bio Bucks, die & game markers. For 2 or more players. Great family fun! For kids age 11 & above.