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Sloths are among the most specialized arboreal species and have evolved a suite of anatomical features that support suspensory behaviors. While sloths generally show a reduction in skeletal muscle mass, the digital flexor musculature (i.e., the muscles associated with grip strength) remains relatively large. It may therefore be inferred that grip strength represents an important selective criterion...
Bite force represents a critical measure of an animal's feeding capabilities and has been analyzed in the context of ecology and body size in numerous vertebrate lineages. Among birds, bite force potential has been comprehensively quantified in finches; however, no in vivo data have been reported within parrots (order: Psittaciformes), and an anatomical estimate of bite force has been calculated for...
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