Jane Goodall’s discoveries has led to the proof of evolutionary psychology as she has successfully explained and derived useful mental and psychological traits as functional products of chimpanzees. In 1960, during her field observation research, Jane witnessed chimpanzees making tools which they would later use. This is the beginning of Jane’s proof of the human link with chimpanzees, as tool making is considered to be one of the defining characteristics of man kind. Later on, Jane has observed chimpanzees hunting smaller mammals, monkeys, and all sorts of animals for me. This further sustained Jane’s thesis of human evolution as this is another undeniable link between humans and chimpanzees. Jane had observed several of the male chimpanzees
