1, dragonfly, it is a beneficial insect, it can be much more beneficial to people. It lives near a small pond and catches mosquitoes, flies and aphids.
Swallows and swallows are also experts in catching pests. They catch pests in the air.
3. Snake, because it eats voles.
Gecko, because it eats mosquitoes.
5, bats, bats can eat 100 to 1000 pests and 3000 mosquitoes a night. It is the only flying mammal, and its superb echolocation ability is even more shameful.
6, earthworm, earthworm is a beneficial animal, it lives in the soil, drilling around in the soil, drilling many holes, loosening the soil, making air and water penetrate into the soil; Conducive to the growth of plants and crops.