Female rib cages tend to be longer and more narrow, while male thoraxes are shorter and wider. Male ribs are also oriented more horizontally. Physical anthropologists explain it with differing lung sizes
The Thoracic Cage: The Rib cage! - YouTube
3,298 Female Ribcage Photos and Premium High Res Pictures - Getty Images
Rib Cage Image & Photo (Free Trial) | Bigstock
Female rib cage - anatomy bones. | CanStock
Nervous system of female ribcage artwork. Illustration of female ribcage with nervous system artwork. | CanStock
Human rib cage from hi-res stock photography and images - Alamy