Ever since the Pleistocene era, human societies have expanded rapidly, developing innovative ways to defend their territories and migrate across the land. Consisting of an aggregate of humans living together, these societies became more powerful as time progressed by consuming more meat (megafauna). Supporting this development, the more mammals that humans would eat, the more protein their bodies would absorb. When humans consume high amounts of protein, they develop stronger muscles, which leads to the stimulation of brain activity. By way of further explanation, amino acids from the proteins are used to make the neurotransmitters that allow your brain cells to network and communicate. Amino acids that come from the protein you eat are the building blocks of your brain’s network. They can excite or calm your brain as well as nourish your brain throughout its lifetime. Also, they allow the body's own proteins to be used to support life, particularly those found in muscle. This led humans to develop intelligence and create a wide variety of tools. These tools are what the early hominids used to develop their culture into that of hunter-gatherer-fishers, making humans a more dominant mammal within that ecosystem.
Rapidly evolving throughout the late Pleistocene to the early to mid Holocene, hunter-gatherer-fisher societies hunted megafauna creatures in a systematic and ethical way. When one species migrates to a different ecosystem, that species is not usually recognized as a threat to other species. Survival, during the late Pleistocene and Holocene era, was one of the most important aspects to life. Any organism, regardless of size, living within their environment had to stay alive and reproduce. During these two eras, it seems as if many organisms lived in a symbiotic manner. It was ethical in every way for the hunter-gather-fishers to pursue the large animals that they did.
The overkill hypothesis can be supported in a variety of features that characterized the pre-modern places that hunter-gatherer-fisher societies created. The first feature is the hunter-gatherer-fisher societies would alter their landscapes to modify their area to make it a more accessible and safe premise. Secondly, the hunter-gatherer societies used the land differently compared to other living creatures that they associated with—mostly residing in regions that consisted of much arid, tropical weather. Lastly, hunter-gatherers neither farmed nor ruled nature. They did not seem to manipulate life, but merely appreciated what nature had to offer to them; they realized that life was insecure, unpredictable, and that nature, itself, was endless.
There is a variety of evidence that leads up to the hunting theory proposal that...