The Soviet Union, having ceased to exist in the last century, in the new millennium left its descendants with a youth social movement that fosters love and interest in nature. We are talking about young naturalists, or in short, young naturalists. The Yunnat movement originated back in 1918, and its “parents,” or rather the initiators of the idea, were biology teacher B.V. Vsesvyatsky and children's doctor I.V. Rusakov.