Human brains rounded into shape over 200,000 years or more

Ancient humans’ brains slowly but surely became round, scientists say.

Expedition Magazine The Inhabitants of Ice Age Europe

Scientists Have Found the Oldest Known Human Fossils - The Atlantic

How Humans Evolved Supersize Brains

Human brains shrank 3,000 years ago because of cooperation

Brain size of human ancestors evolved gradually - UChicago Medicine

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Frontiers Human brains have shrunk: the questions are when and why

Homo Sapiens - World History Encyclopedia

Secrets of an astonishingly well-preserved 2,600-year-old human

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Brains The Smithsonian Institution's Human Origins Program

DNA: Our ancient ancestors had lots more

How Humans Evolved Supersize Brains