A) Cortical shell thickness across the lifespan. B), C), D), E), and F) Representative MicroCT images of the cortical shell thickness at the femoral mid-shaft at 1-month, 6-months, 12-months, 18- months and 24-months, respectively. Values represent Means ± S.E. *p<0.05 vs. 1-month, 6-months and 24-months; **p<0.05 vs. 1-month. 1-month, n=9; 6-months, n=9; 12-months, n=10; 18-months, n=9; 24-months, n=11.