Fossil evidence favors a role for vision in the modular evolution of the primate neocortex.

Neocortical expansion is a key innovation of crown primates, although fossil evidence for how the neocortex has evolved remains elusive.

Neocortical expansion is a key innovation of crown primates, although fossil evidence for how the neocortex has evolved remains elusive. We studied neocortical evolution using virtual brain endocasts from extant and Eocene-Miocene fossil primates. We found that neocortex size…