For centuries, we’ve explored this question, sometimes with very biased answers. Find out what modern research says about ...

Add Yahoo as a preferred source to see more of our stories on Google. Hobbits are exceptions to the rule that older ancient humans had proportionally larger wisdom teeth and smaller brains. Jim Watson ...

The evolution of the human species is marked by an increase in brain size. Now new research suggests that could be partly dependent on increases in prenatal estrogen—revealed by looking at the length ...

You are a child who grew up. The inevitability of a child’s growth is both celebrated and mourned. Under normal circumstances, parents can do little but stand back and watch as shoe sizes climb, ...

Vertebrates have extremely different brain sizes: even with the same body size, brain size can vary a hundredfold. As a rule, mammals and birds have the largest brains in relation to their body size, ...

The coordinated expansion of these brain regions accounts for much of the variation in brain size across primate species. Given their role in fine motor skills and spatial processing, these areas were ...

Over the last decades, research has proven that aging isn’t just about our years in birthdays. Instead, we may be better served by knowing how organs and cells have handled those years. This powerful ...

Until Homo floresiensis was discovered, scientists assumed that the evolution of the human lineage was defined by bigger and bigger brains. Via a process called encephalization, human brains evolved ...