Why Are Human Brains So Big?

Researchers have shown that changes in the brain occurred independent of evolutionary rearrangements of the braincase.

How Humans Evolved Supersize Brains

Why Do Humans Have Such Big Brains?

Culture and Personality (Psychological Anthropology) -- University of Minnesota Duluth

Why Are Human Brains So Big?

The human brain – Maropeng and Sterkfontein Caves

Why do primates have big brains? - Quora

How is the human brain so large?

Why are people's brains different sizes?

Human evolution: Brain shape has barely changed in past 160,000 years