1, butterfly origami method 1-4

2. Butterfly origami method 5-6

3. Red Dragonfly 1-9

3. Red Dragonfly 10- 18

insect

1, with various species and shapes, belongs to arthropods among invertebrates and is the largest animal group on the earth, accounting for more than 50% of all biological species (including bacteria, fungi and viruses), and their traces are almost all over the world.

2. Until the beginning of 2 1 century, the known insect species had exceeded 1 10,000, but there were still many species to be discovered. Insects are the largest species and quantity in the animal kingdom, which have great influence on agricultural production and human health. The most common ones are locusts, butterflies, bees, dragonflies, flies, Cao Meng, cockroaches and so on.

There are not only many kinds of insects, but also an amazing number of individuals in the same species. Insects are widely distributed, and no animal can compare with them, almost all over the earth. There are different kinds. Most insects can be used as specimens, which is a good biological resource that human beings can use.

4. Insects contact with the external environment through the nervous system. The nervous system connects the body wall surface with various sensory organs and reactors in the body. The nervous system of insects is also an information exchange system and an important overall control system of insects.