![Variations in cranial capacity in humans' brain size over the world... | Download Scientific Diagram Variations in cranial capacity in humans' brain size over the world... | Download Scientific Diagram](https://www.researchgate.net/publication/369692387/figure/fig1/AS:11431281134362056@1680361266202/Variations-in-cranial-capacity-in-humans-brain-size-over-the-world-SourceBeals-Smith.png)
Variations in cranial capacity in humans' brain size over the world... | Download Scientific Diagram
![A crude plot of average hominid brain sizes over time. Although after... | Download Scientific Diagram A crude plot of average hominid brain sizes over time. Although after... | Download Scientific Diagram](https://www.researchgate.net/publication/265057343/figure/fig2/AS:341230849413130@1458367182984/A-crude-plot-of-average-hominid-brain-sizes-over-time-Although-after-an-initial.png)
A crude plot of average hominid brain sizes over time. Although after... | Download Scientific Diagram
![Brain size of human ancestors evolved gradually over 3 million years | Columbian College of Arts & Sciences | The George Washington University Brain size of human ancestors evolved gradually over 3 million years | Columbian College of Arts & Sciences | The George Washington University](https://columbian.gwu.edu/sites/g/files/zaxdzs4901/files/image/BrainSize_1080x720.jpg)
Brain size of human ancestors evolved gradually over 3 million years | Columbian College of Arts & Sciences | The George Washington University
![The average human brain has decreased by the size of a lime in the last few millennia, researchers say. Scientists suggest that perhaps our need to maintain a large brain has relaxed The average human brain has decreased by the size of a lime in the last few millennia, researchers say. Scientists suggest that perhaps our need to maintain a large brain has relaxed](https://lookaside.fbsbx.com/lookaside/crawler/threads/CxLyTYXvXBN/0/image.jpg)
The average human brain has decreased by the size of a lime in the last few millennia, researchers say. Scientists suggest that perhaps our need to maintain a large brain has relaxed
![Frontiers | When and Why Did Human Brains Decrease in Size? A New Change-Point Analysis and Insights From Brain Evolution in Ants Frontiers | When and Why Did Human Brains Decrease in Size? A New Change-Point Analysis and Insights From Brain Evolution in Ants](https://www.frontiersin.org/files/Articles/742639/fevo-09-742639-HTML/image_m/fevo-09-742639-g001.jpg)