did prehistoric hunter-gatherers build permanent dwellings?

Prehistoric hunter-gatherers did not typically build permanent dwellings. Instead, they lived in temporary or semi-permanent shelters that could be easily constructed and disassembled as they moved around in search of food. These shelters varied among different cultures and regions but often included structures such as tents, huts, lean-tos, or pit houses. They were typically made from readily available materials such as wood, animal hides, or vegetation. The need for mobility and the absence of agriculture limited their ability to construct permanent settlements.

Did they irrigate and farm the land?

No, prehistoric hunter-gatherers did not practice irrigation or farming as they relied primarily on hunting, fishing, and gathering wild plants for sustenance. The transition from a hunter-gatherer lifestyle to agriculture and irrigation occurred later in human history, marking the transition into the Neolithic Era, also known as the Agricultural Revolution. This shift occurred independently in various regions around the world, as communities began cultivating crops and domesticating animals, leading to the establishment of permanent settlements and the development of complex societies.