Discuss the reasons regarding why and how did the brain size of our ancestors change over time? Elaborate your answer by giving examples of latest researches in Physical Anthropology.

Question

Discuss the reasons regarding why and how did the brain size of our ancestors change over time? Elaborate your answer by giving examples of latest researches in Physical Anthropology.          

Answer 1

Human evolution has produced many variables and trait improvements over vast amounts of time. One of those being the size is our brain. Once humans reached a stage in evolution where the population of people inhabiting the same area was vastly larger than before, physical qualities and motor function was easily learned from observational learning.

Having experience many shared experiences and acknowledgement of each others similar body functions, language was a necessary evolution in the time line of advancement.

Having excess energy due to easier learning through cooperation, the energy was applied to developing a new skill, language. The brain then increased in size as thoughts took on complex arrangements rather than simple sensory expressions such as desire to eat or sleep.