Bipedalism Vs Australopithecines

From the moment humans were created to modern times, they made numerous physical and technological advancements. It started when the Australopithecines began displaying signs of bipedalism, freeing two arms for using tools and carrying food while walking at the same time. This was a significant physical change that the hominid species chose to make, as bipedalism was the gateway to hunting, farming, and harvesting. As time passed, the homo habilis began showing up. Their brain size was on a range between 550 and 687 cubic centimeters, whereas the Australopithecines had a brain size between 350 and 600 cubic centimeters, which meant that the homo habilis' brain capacity grew around 50%. This larger brain capacity led to the experimentation with
simple stone tools and basic hunting knowledge. The homo habilis are arguably stronger than their predecessors since they occasionally ate portions of meat, which is a rich source of protein, in contrast to the frugivorous Australopithecines. Next came the homo erectus, of whose brain size was again 50% larger than that of its progenitor--leading to a cleverer mind. The homo erectus further developed the stone tools of the homo habilis, having made hunting spears and hand axes. Due to their ubiquitous purposes, the hand axes were a huge step forward. The hand axe could be used for hunting, skinning and butchering animals, scraping skins, sharpening tools, and digging up edible roots. The other technological advancement made by the homo erectus was fire, which was arguably the most important one too. With fire, the homo erectus could cook food, making it safer, more edible, and easier to digest. Not only did the homo erectus make technological achievements, they also made a social advancement. Since the homo erectus learned to hunt in groups, it was likely that they had developed a form of communication.