Heterochrony as the Basis for Inter- and Intraspecific Diversity of Skin in Vertebrates

—The importance of heterochrony as an evolutionary pathway of the emergence of specific and intraspecific diversity is demonstrated on the example of integuments and their derivatives (scales, hair, glands) as ectosomatic organs of various vertebrates. We used our data and the results of studies on zoology, morphology, biomedicine, and...