Each student draws a pelican to use in the game. Discard the jokers from a deck of cards. Shuffle the deck and place it face down in the middle of the players. Four is a good number for a group. 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.