Some of these creatures are not very beautiful and some are considered only dangerous to humans. People kill these insects and small animals without thinking about their usefulness. Here are some facts about their benefits to humans and the nature. Birds eat insects, grubs, flies and spiders. They help spread seeds of wild plants.
Birds also entertain humans with their song.
The earthworm lets air into the soil. This makes the soil better for plants to grow. The hedgehog eats mice, small snakes and lizards and is totally harmless to humans. In Finland, people put a saucer of milk out at night for the hedgehog and its young. Chameleons eat flies and mosquitoes.