Our big brains have shrunk. Scientists might know why.
Why do humans have such large brains? Our study suggests ecology was the driving force
Opinion: Do humans have free will and moral responsibility? Of course - Los Angeles Times
The make-up of the brain
Split-brain - Wikipedia
Top 10 Mysteries of the Mind
Your Brain & Nervous System (for Kids)
Why do humans have such huge brains? Scientists have a few
Consciousness may rely on quantum entanglement - Big Think