This change in skin color provides evidence that the environment can influence gene action.
Explanation:
Many studies have revealed that the physical traits of a person are attributed to the genetic makeup as well as the environmental characteristics. Some traits depend on both the factors. Environmental factors can determine which genes would be turned on or off or it might control the expression rate of a gene. For example, two identical twins might have different skin colour if one works in sunlight and the other works indoors.
That our actions don't affect just us. Our actions can affect others around us and then those people around them and so on, thus, "The Butterfly Affect".
