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The (a) crania, (b) humeri and (c) femora of (i) a passerine bird (Plocepasser mahali, 43 g, Order Passeriformes), (ii) a bat (Artibeus jamaicensis, 40 g, Order Chiroptera) and (iii) a rodent (Chaetodipus baileyi, 40 g, Order Rodentia) of similar body size. Percentages indicate the average contribution of each skeletal element to total skeletal mass; sample sizes are in parentheses.
