Natural selection has long been considered the driving force behind human evolution. But a landmark study of 87 fossil skulls spanning the past two million years suggests the story is far more complex ...

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 ...

More than a decade after the first Neanderthal genome was sequenced, scientists are still working to understand how human-specific DNA changes shaped human evolution. It's just over a decade since ...

Researchers discovered that autism’s prevalence may be linked to human brain evolution. Specific neurons in the outer brain evolved rapidly, and autism-linked genes changed under natural selection.

A study of 225 newborns suggests prenatal estrogen may have played a role in the evolution of larger human brains. Boys with finger-length patterns linked to higher estrogen exposure before birth ...

A new paper in Molecular Biology and Evolution, published by Oxford University Press, reports that Italian bears living in areas with many villages evolved and became smaller and less aggressive.

RABAT — A newly announced fossil discovery is further cementing Morocco’s central place in the prehistory of humanity. On Jan. 7, Moroccan and international researchers revealed the unearthing of ...

Add Yahoo as a preferred source to see more of our stories on Google. A major genetics study uncovers how ancient human mixing in Oceania still affects immunity, evolution, and modern health. (CREDIT: ...