(as cited in Amen-Ra, 2003). Not until the most recent Quaternary period, the last 2.5 million years, did Homo habilis begin scavenging carcasses with their newly developed stone tools while still predominantly eating a vegetarian diet (Australian Museum). This change, probably climatic in origin, was evolutionarily advantageous, as scientists such as Charles Musiba among others believe this a fundamental factor to increased brain size, present all the way from Homo habilis to modern day humans. By…
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