How was food supply different in Ancient Sumer than it was during the Paleolithic Age?

Ancient Sumer was a civilization.

Explanation:

The Paleolithic was an age of purely hunting and gathering.  For food, they were travelling and moving from one place to another. Paleolithic Age is also known as Old Stone Age. During this period, humans lived in caves and use animal skin, stone, bones, and woods for survival.

Ancient Sumer is one of the earliest civilization in Mesopotamia. Sumer settled in the valleys of the Tigris and Euphrates which assisted the farmer in growing crops and grains.