The damselfly is a small carnivorous insect belonging to the Insecta, Odonata, and Bundle-winged suborder. It is similar in shape to the dragonfly, but with a more slender body. The body is slender, the compound eye is developed, the antennae are setae, the front and rear wings are similar in shape and almost the same size, and the wings will unite and stand on the back when resting. Bright color, with metallic luster, usually live close to the water, to mosquitoes, flies and other small insects for food. The reproduction process is very unique, the female will lay eggs on the water side of the plant or in the water, the larvae live in the water, after many molts after eclosion into adults. It is a beneficial insect for human beings and can help control the number of pests.

It is a legless reptile belonging to the snake suborder, with over 3000 different species. The body is slender and covered with scales, which help protect the skin and reduce friction. Vision is usually not very good, but they have other senses to compensate for this deficiency, such as detecting odors in the air through tongue signals and perceiving the surrounding environment by sensing ground vibrations. They have a diverse diet, some feed on small mammals, while others prey on birds, fish, or insects. Some snakes are poisonous, and they use their venomous fangs to inject venom to capture or kill their prey. Most snakes, on the other hand, are non-toxic and prey on them by coiling or swallowing