Animal domestication is an ongoing relationship between man and animals characterized by the manipulation or control of the animals' behavior by man. The relationship exists in several forms, which are differentiated by the degree and particular manifestations of control exercised over the animals. Each form of domestication may be recognized archeologically on the basis of material manifestations of the particular form of control by which it is characterized. No form of domestication is unique to a given culture, economy, or period in sociocultural evolution. The relationship has occurred in each of its forms among vastly different cultures since ten thousand years ago, and appears to have occurred, in a relatively non-complex form as many as fifteen thousand years ago among Magdalenian reindeer herders in North Central France.