The Keltiminar culture (5500–3500 BCE)[1] occupied the semi-desert and desert areas of the Karakum and Kyzyl Kum deserts and the deltas of the Amu Darya and Zeravshan rivers in Central Asia.[2] The Keltiminar people practised a mobile hunting, gathering and fishing subsistence system. Over time, they adopted stockbreeding. With the Late Glacial warming, up to the Atlantic Phase of the Post-Glacial Optimum, Mesolithic groups moved north into this area from the Hissar (6000–4000 BCE). These groups brought with them the bow and arrow and the dog, elements of what Kent Flannery[3] has called the "broad-spectrum revolution".[4]