If you take into account the size of the animal, the loudest creature on Earth is the squirrel insect. They live in the waters of Europe. Its size ranges from 1.5 to 15 mm, but the volume of its sounds is 99.2 dB (as in the back rows at a rock concert). Such loud sounds are produced during the coupling period. An interesting fact is that they create such a sound with the help of their genitals, passing them through the abdomen.