Once in the middle of the last century, a couple of scientists - Arnold and Lillian Gangl, conducted experiments on insects. One fine day, the female cicada had a metamorphosis - she shed her wings, and three days later the male and she brought offspring - tiny cicadas. However, when one of them managed to throw off the shell-covered egg at some point, all the experiments with various violations of the rules and recommendations for conducting this research led to the fact that the experiment was declared a failure.