Little Matching Animals

This is a concentration game. There are 30 pairs of animals, 1 pair of cards include 1 b/w and 1 colorful animal. Any number of people can play this game at the same time. The way to play this is to display all the cards on a surface, facing down. Two cards are flipped face up over each turn. When a person find two identical animals, he/she can collect the cards and make them 1 point. Who gets the highest point wins.