Over many millions of years, the human species has changed to adapt to its environment. As an example, this process of change has favored larger brains to allow for the use of language, complex problem solving, and social interaction. This process is called

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The process of change in a species over many generations to adapt to its environment is called evolution. This process is driven by natural selection, where traits that provide a survival or reproductive advantage are more likely to be passed on to future generations. In the case of humans, larger brains have provided advantages for language, problem-solving, and social interaction, and therefore have been favored by evolution.

Over Many Millions of Years, the Human Species Has Changed