Cockroaches are modern sanitary pests, and the insects on the earth-cockroaches may belong to the oldest one. Long before human history, in the Carboniferous period about 300 million years ago, I lived a life similar to that now. Because it has very sensitive sensory organs, it can survive to this day.
Distribution: all over the world.
Features: Cockroaches' tentacles can find food and keep in touch with their companions, so they are often licked to keep clean.
The first pair of wings are keratinized and have no flight ability.
The second pair of wings has the ability to fly, but under the influence of the first pair of wings, it flies in a figure of eight.
Poor ability.
Reproduction: Cockroaches are also very prolific, with more than 10 eggs in one oocyst.
In addition, there are some other introductions on the following websites:)
. tw/000023.htm