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Fig. 1 | BMC Evolutionary Biology

Fig. 1

From: Accelerated evolution and diversifying selection drove the adaptation of cetacean bone microstructure

Fig. 1

Characterization of bone microstructure. a Technical processing of the three kinds of bone, including long bone (rib and humerus) and vertebrae. Vertebrae data were obtained from [17], rib and humerus were sampled at the cross section at mid-length (solid line). Images of three bones were obtained from our laboratory. b Compactness profile indices for rib and humerus (Cg, Cc, Cp, S and P). Measured using Bone Profiler [25]. Each cross-section picture was converted to a binary image using Adobe Photoshop CS6

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