This research investigates how differences in butterfly behavior relate to brain evolution and memory. Heliconius butterflies showed superior long-term memory and enlarged mushroom body brain regions compared with related species. The work explores how neurogenesis shapes cognition and may ultimately contribute to understanding memory, brain development, and neurological disorders.

This research uses cavefish to reveal how evolution reshapes the brain. By comparing surface and cave-adapted forms, it shows that neural circuits lost to vision are repurposed for touch and smell. These findings demonstrate how evolution refines existing brain structures to meet environmental demands.