Fig. 2From: Postcranial heterochrony, modularity, integration and disparity in the prenatal ossification in bats (Chiroptera)Relative timing of onset of ossification (ranks) of 24 postcranial bones in Aves (red), Chiroptera (green), and non-volant mammals (blue). Standardised ranking of bone ossification onset ranges from 0 (first to start ossification) to 1 (last to start ossification)Back to article page