Note for life science grade 12 human evolution

Human evolution is the evolutionary process that led to the emergence of anatomically modern humans, beginning with the evolutionary history of primates – in particular, genus Homo – and leading to the emergence of Homo sapiens as a distinct species of the hominid family, the great apes.

Key aspects include:

• Common ancestry: Humans share a common ancestor with other primates, particularly chimpanzees.
• Bipedalism: The ability to walk upright on two legs is a defining characteristic of hominins and evolved early in human evolution.
• Brain development: Over millions of years, there was a significant increase in brain size and complexity, leading to enhanced cognitive abilities.
• Tool use: The development and use of tools, starting with simple stone tools, played a crucial role in human survival and adaptation.
• Cultural evolution: The development of language, art, and complex social structures further distinguished humans.