Evolution of hominin intelligence

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Intelligence

Intelligence also means to understand. However, there are several ways to define intelligence. Intelligence may include traits such as reasoning, planning and problem solving. Along with creativity, personality, knowledge and wisdom.

Human intelligence can be measure by the size of the brain. It is believed that the size of the brain determines the intelligence of the individual.

Development of the Brain

Up until approximately 5 million years ago and the beginning of the Pliocene era where we begin to notice the development of the hominid brain (Citation needed) before this time period, the hominoid brain was no larger then the brain of other mammals of similar size. However, a larger skull created a problem for the female hominids because it required the female to have a larger birth canal. A larger and wider pelvis would lose her ability to use the other motor skills, such as running (Citation Needed) that was used for survival

Stone tool The use of stone tools required larger brain mass to completed such skill to survive.