The definition of fire is the active principle of burning, characterized by the heat and light of combustion; And cultivating it was perhaps one of the biggest technological leaps humans ever surpassed. Fire affected the ancient man in many ways through cause and effect, and every effect created a cause, which resulted in another effect. It allowed the food to be germ-free because it was cooked and since it was cooked it was more digestible and that resulted in more nutrients for the body allowing brain and brain capacity to increase. The fact that food was cooked, the jaw and teeth experienced a decrease in size since meat wasnâ€™t so hard to eat through. Fire also allowed the creation of better and stronger tools thus resulting in hunters having more success with the big game and the food supply to increase. It was also used as a defence against the big carnivorous animals that preyed on humans for food. Fire in all was a great discovery made by a hominid species Homo erectus that was first to create fire and control it. In the following paragraphs I will try to prove that cultivation of fire had in fact a great affect on the ancient man.
Another way that fire was used was in defence from the animals such as tigers or lions that could have preyed on humans for food. When Homo erectus discovered fire they had adapted many uses to it, one of them was to cook food. This was of course before Homo erectus cultivated fire. This led to humans being smarter thus resulting in humans more capable to create and invent new tools and ways of hunting; more capable to adapt to the current environment they lived in and the environment that food led them to. The brain overtime grew larger since more and more nutrients were available to it through the digestion of cooked food rather than raw. " (Walker 21) Because fire allowed the creation of a spear the body had to adapt to the newly developed hunting style. They used the fire to keep their shelters warm and cook their food, and scare away wild animals. first fire was rarely seen or used because humans could not develop it and the only source of fire would have been from lightning, volcanoes, and piles of dry leaves suddenly igniting. Reduction in postcranial robustness then appeared for the first time among Africans towards the end of the Middle Pleistocene"1So fire in fact affected our body structure making us more upright due to the newly developed weapon "the spear", according to the Professor of Anthropology C. Although fires were rare "phenomena" at the time, Paleolithic peoples still found use to it. "The spear led to the modification of the body from the neck down. "Fire was used to harden the points of wooden spears so that the weapons could pierce the skin of a rhinoceros. And when the jaw decreased, brain capacity increased at the same time.