The reason for the black color of some animals is the excessive content in their skin of a dark pigment - melanin, and this phenomenon itself is called melanism. Black individuals are found both among mammals and among reptiles and arthropods.
According to zoologists, melanism is directly related to the processes of adaptation of animals in an unfavorable environment. Some of them become less visible to their natural enemies, while others, for example, black panthers, on the contrary, the black color gives advantages for hunting at night.
In addition, melanin contributes to the maintenance of the animal's health. Melanin perfectly absorbs ultraviolet rays, protecting the skin surface from sunburn. It is also a powerful antioxidant.
As for the melanistic reptiles, the black color helps them to keep warm in low temperatures. In the course of research, it was found that the heating temperature in black lizards was 1-2 ° C higher compared to their relatives of a different color.