foods that they needed were attainable simply by use of their hands and could be eaten by using their teeth and jaws. By studying the skulls of the extant hominoids, we find that they had large nuchal areas and large canines. This means that their jaw and their teeth were their tools in breaking hard bone materials and eating any vegetation. It seems that as the hominids evolved, there was a need to get a greater caloric and protein intake. Therefore, skull sizes changed because bovine or other large grazing animals have walls far too thick for even the great bone-crushing ability of the jaws of the largest and strongest predators, and they needed to find a new way to get meat. Therefore, their skulls changed dramatically to include a higher cranial capacity. By having an increased cranial capacity, this allowed for the more evolved hominids to gain a more advanced understanding of their environment and the foods that could be edible. Additionally, the later hominids wouldn't need to use their jaws to cut into food so their jaw size decreased. Along with their jaw size, their nuchal and canine regions lowered as well. As the hominids evolved further, they strived to find ways of getting the bone marrow out, and that is how Stone Age technology advanced.
Bone marrow was a necessity because the later hominids' diet demanded large quantities of fat and protein. Additionally, the unique packaging of the marrow allowed drawing out the marrow and keeping it for a much longer time. In order to do this, the later hominids created useful stone tools. The hominids used stones such as flint, chert, jasper and obsidian which are all as hard as glass. These stones are not found in surplus everywhere and the hominids wouldn't hand out their tools willy-nilly; therefore, they would manufacture whatever they could from their deposits and attain whatever they couldn't through trade systems within their social structure. Another stone tool was the dawn stone. This was a small tool that had a sharp size and a rough side, needing either to crush the bone or cut the meat. After creating their tools, the next step was to create a flaked edge. This would be done by using a finger shaped bone or antler. Additionally, latter hominids created other tools such as the bow and arrow. By bending a splint of wood and attaching the sinew, they would be able to create a catapulting device to launch their spear tipped slivers of wood into animals. Sinew was also useful for hand axes or anything that needed to be tied together. While we have saws to cut objects in half, the latter hominids simply used two stones to break bones, using one for its sharp edge, and the other for its smooth
bottom. Next, it was obvious that the advancement of Stone Age tools could not be the only way to evolve and succeed better. Therefore, we see the existence of techniques in hunter gathering. Early humans were gatherers and they consisted mostly of the women and children of the different societal groups. As for hunting, the men and the young adolescent boys specialized in hunting. In terms of tools, they focused on weaponry that was stone tipped such as clubs or spears. Because the latter hominids focused on gathering, they attributed extensive knowledge of local plants, fungi and small animals. This even included advancing their techniques for gathering. Hominids would use large twigs from trees and use the fresh green insides to aid in their basket weaving. Additionally, they would use sticks with animal hide to aid in carrying large quantities of food that was gathered. To conclude, it's obvious that diet and physical appearance are strongly correlated. This is evident through the changes in skull size from orangutans through latter Hominids. Additionally, as the hominids evolved, their Stone Age technology grew more advanced from dawn stones to bow and arrows/spears. In terms of hunting and gathering, it is now evident that gathering was a crucial part of life. It allowed them to attain a span of vegetation on thrive on foods other than meat. Vegetation was needed not only for their diet, but could be used for medicinal purposes. By voyaging down the path of hominoid and hominid evolution, we see how technology, physical appearance, and diet changes.