Discard the jokers from a deck of cards. Shuffle the deck and place it face down in the middle of the players. The game is played according to who eats whom. Algae eat nothing. Little fish eat algae.
Big fish eat little fish.
Pelicans eat only big fish. First player draws a card and turns it over. If the card is algae or little fish, it remains in front of the player. If a little fish is drawn, it must take algae from any players. Stack the algae cards with the little fish on top in front of the players.