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C. S. Tucker

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Articles by C. S. Tucker

Hoffmann's two-toed sloth I: Complete myology in the thoracic limb of Choloepus (Pilosa: Xenarthra)

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By C. S. Tucker, A. M. Mossor, J. A. Avey-Arroyo
| Wiley Online Library Verified
1 INTRODUCTION Tree sloths evolved a below-branch mode of movement making them one of few mammalian taxa for which suspensory locomotion and posture is nearly obligatory. Indeed, the imprint of evolution for suspensorial habit is most remarkably reflected in the physiology, limb form, and feet of extant sloths.
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Hoffmann's two-toed sloth II: Muscle architectural properties in the thoracic limb of Choloepus (Pilosa: Xenarthra)

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By C. S. Tucker, A. M. Mossor, K. B. Spainhower
| Wiley Online Library Verified
1 INTRODUCTION Our previous descriptions of limb muscle myological arrangements in two-toed sloths (see Tucker et al., 2026) identified several modifications that matched well with their needs for frequent and/or prolonged suspensory locomotion and posture. These included modifications to the origin of m. trapezius pars cervicalis and m. biceps brachii-short head; a complex shoulder–elbow muscle chain; extra of bellies of mm. rhomboidei, m. pectorales superficialis, and m.
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