Figure 4

Quantitative backscattered electron imaging (qBEI) of the trabecular bone. (a) Pseudo-coloured images of the trabecular bone. (b–f) CaMean, CaPeak, CaLow and CaHigh did not differ between the groups, indicating a similar mineralisation pattern, whereas CaWidth was increased significantly in sperm whales, which indicates higher mineralisation heterogeneity. (g) Histogram of the bone mineral density distribution (BMDD).