The ability to adapt to the geography and environment was not just a luxury item for paleolithic humans, it was a means of survival. The period of time known as the paleolithic period is over 2 million years. The variety and means of technology over this time period is great. There is also a marked difference between technologies from one area to the next. This demonstrates that early humans were using the geography and climate of their environments to survive.
Probably the greatest innovation of the paleolithic period is the use of fire. Fire provided humans with warmth and the ability to cook meats. Humans of this period became carnivorous which gave them an advantage in terms of calories and consumed and an increase in protein intake. Many of the artifacts from the paleolithic period are tools used for hunting and securing food supply for survival. These tools started as digging tools and evolved into wooden spears and then later stone and obsidian blades and arrows. By the upper paleolithic period, humans were very efficient at creating tools to use for food acquisition.
Also evident in the artifacts of paleolithic humans is the development of culture. By studying the cave art from the period, a connection can be made to early development of religious practice. There have been discoveries of jewelry and beads in addition to sewn clothing in the later period. Musical instruments have been discovered from the period. This points to a human need to use their tools for cultural development.