Frogs are just made to deal with various insects. Without them the world would be overcrowded by flies and other bugs. Show how good you are in hunting those insects using your elastic tongue.
Imagine yourself a world of insects, where the planet is overcrowded with flies and bugs, that fill the city and other territories. People hate insects, but that is exactly what will to happen if frogs disappear. Look at this hungry frog and tell, how much flies and bug it catches during the hunt? Play the game and see everything for yourself!