From the beginning humans have demonstrated creativity in the various forms of cave art known as the Lascaux and the Grotto (Grotte Cosquer). In addition, during the magnificant explosion of innovation came the needle, crude architecture, and the emergence of more elaborate and specialized stone tools, as well as ornamentation including jewelery and clothing. The final and last conclusive part of human development was the domestication and avid production of agriculture. This was the true beginning of more intense human interaction and the start of a relatively large population which continues to expand even today. Most of this human population explosion has occurred in the last several centuries but its roots lie in man's ability to control the food supply - a door opened to man as a result of the agricultural revolution. In turn, it was the Great Leap of the late Paleolithic that opened another door that enabled people to domesticate plants and animals, and therefore, profoundly change our world of today.