Shared mechanisms mediate the explore-exploit tradeoff in macaques and humans.

Ancestors of macaques and humans separated into distinct lineages 25 million years ago. Despite this long separation, Hogeveen et al. (2022) show, in this issue of Neuron, that they mediate the explore-exploit tradeoff, which must be managed by any agent adapting to a dynamic environment, using similar computational and neural mechanisms.