The natural and the social world shaped the evolution of each. Knowing whom to invite to dinner is as important as knowing ...

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 ...

Brain size increased gradually within each ancient human species rather than through sudden leaps between species. Modern humans, Neanderthals, and other recent relatives on our human family tree ...

Visualizations of brain endocasts (blue) from the skulls of a dinosaur and a modern bird. Credit: WitmerLab at Ohio University. An international team of evolutionary biologists and paleontologists ...

A longstanding question in evolutionary biology is how sexual selection influences how entire genomes develop. Sexual selection is where individuals with certain traits have higher reproductive ...

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 ...

A new study from Northwestern University is reshaping how scientists think about brain evolution. The research suggests that the gut microbiome does more than aid digestion. It may also influence how ...