Context: Starting at the transition between the Middle to Upper Paleolithic period, some 80,000 to 70,000 years ago, some hunter-gatherers bands began to specialize, concentrating on hunting a smaller selection of (often larger) game and gathering a smaller selection of food. This specialization of work also involved creating specialized tools, like fishing nets and hooks and bone harpoons. The transition into the subsequent Neolithic period is chiefly defined by the unprecedented development of nascent agricultural practices. Agriculture originated and spread in several different areas including the Middle East, Asia, Mesoamerica, and the Andes beginning as early as 12,000 years ago.

Question: During what period did hunter-gatherers begin to focus food collection on a more limited range?
Answer: Middle to Upper Paleolithic

Question: How many years ago did hunting-gatherers start specializing in their collection practices?
Answer: 80,000 to 70,000 years ago

Question: What was the change in gathering?
Answer: a smaller selection

Question: When did the use of agriculture begin it's spread?
Answer: 12,000 years ago

Question: The transition between the Lower and Middle Paleolithic period started when?
Answer: Unanswerable

Question: In what period did all hunter-gatherers begin to specialize?
Answer: Unanswerable

Question: The transition into the Paleolithic period is chiefly defined by what?
Answer: Unanswerable

Question: Agriculture ended how many years ago?
Answer: Unanswerable

Question: When hunter-gatherers began to specialize, they concentrated on a larger selection of what?
Answer: Unanswerable