of a spider is occupied by the brain, such a conclusion was made by scientists and the smithsonian tropical university, by researching the smallest spider in the world. sometimes the brain of an arthropod reaches such a size that it displaces the rest of the organs into the lower limbs. leeches have five pairs of eyes, 300 teeth and 32 brains , in fact, of course, there is only one brain, but it consists of thirty-two separate nerve nodes, which zoologists quite seriously call separate organs. the smallest nervous system in the world is possessed by a microscopic wasp of the megaphragm species, while the insect lives in the form of a larva. it has a small set of neurons, which, as the individual grows older, decreases because they simply do not fit in a tiny head. it was a project of science addiction, and i am its host ekaterina beletskaya, we hope that you and us were interested in peace of mind and take care of your nerves. brussels in 1958, it was here that the first post-war industrial exhibition in europe was held from april 17 to october 19. its scope was impressive. but it went down in history