Fig. 2: Early postnatal development of the humerus of African mole-rats. | Communications Biology

Fig. 2: Early postnatal development of the humerus of African mole-rats.

From: Fossorial adaptations in African mole-rats (Bathyergidae) and the unique appendicular phenotype of naked mole-rats

Fig. 2

a Well-developed deltoid tuberosity (DT) in Bathyergus suillus and B. janetta originated from a localized primordium in the diaphysis. Chondroepiphyses show an enlarged humeral head (HH) and wide cartilaginous epicondyles (EH). Similar development of humerus in b Georychus capensis, c Heliophobius argenteocinereus, d Fukomys mechowii, e F. damarensis, and f Cryptomys hottentotus. g Note the absence of cartilaginous tissue in the diaphysis of Heterocephalus glaber. Scale bars represent 5.0 mm, except in specimens JJ402, JJ405, JJ010, and #227, which represent 2.5 mm. Stained specimens are in lateral view, except GM247 which is in posterolateral view. Non-stained specimens are shown in anterior view.

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