Science ❯ Biology ❯ Anatomy

Bone Structure

Flight Adaptations Collagen Growth Rings Trabeculae Humerus Fossil Microstructure Cortical Bone

Study Finds T. Rex Reached Full Size at 35–40, Reshaping Its Life History

Polarized-light imaging of 17 leg bones revealed hidden growth rings that shift T. rex’s peak size to late middle age.