How is the adaptation scaly skin useful to the animal kingdom?

Scaly skin serves several crucial functions in the animal kingdom, particularly for reptiles and fish. It provides a protective barrier against environmental hazards, such as desiccation and physical injuries, while also offering defense against predators. Additionally, scaly skin helps reduce water loss in terrestrial environments, allowing these animals to thrive in diverse habitats. Furthermore, the texture and coloration of scales can aid in camouflage and thermoregulation, enhancing survival and reproductive success.