A new study, published July 6, 2026, in the journal Nature Communications, suggests that two of the best-known trends in ...

For nearly 30 years, a landmark study shaped how scientists understood the relationship between brain and body size in ...

For most of human evolution, the story of the brain seemed to move in one direction. It got bigger. That long rise is still there in the fossil record. But a new analysis argues that the trend did not ...

Recent research challenges the idea that natural selection favored larger human brains. Scientists analyzed fossil skulls and ...

Our brains are large compared with other animals, so it is tempting to assume there was an evolutionary advantage to them – ...

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 oestrogen - revealed by looking at the ...

A study investigated whether the genes for schizophrenia and autism appeared more frequently as mammals evolved bigger brains ...

Many of the body's biggest flaws are the result of evolution building on old designs instead of starting over. Our spine, ...

A new study has examined how mothers influence the size of their child's head—and, as a result, brain size and future ...