caveman don't live in a permanint home they move from place to place to place to get food and to gather barries. they would travel in small groups so it would be easyer to feed evryone sence it was hard to hunt and gather enoph food and supplies.
at this time they started to discover agriculture and they started to learn how to fish and go to rivers to hunt for food. they also learned how to not kill animals but to also how to rehubillatate the animals.
after cave men discoverd agriculture they started to have permenet shelter and this inproved geting more jobs and also increse the popuulation they got more food like fish and animals so now evreyone had food and shelter to live in