Overview

• Researchers discovered significant changes in gene expression across different Drosophila species, leading to unique olfactory experiences.
• Stabilizing selection maintains most genes at consistent levels, while thousands have evolved to shape distinct sensory landscapes.
• Male-biased gene expression in scent detection points to sex-specific evolutionary paths in fruit flies.
• The study provides insights into the evolution of sensory systems, with implications for understanding sensory perception across species.
• Findings suggest that males and females experience the world through different olfactory lenses, indicating pervasive sex differences.