Abstract

Bradypus does not drag itself along the ground, as has been often reported, except when on a smooth, hard surface. Limb-movement patterns are similar throughout terrestrial and climbing activities, but gaits vary from lateral-sequence, diagonal-couplet modes during terrestrial walking, to trots and diagonal-sequence, diagonal-couplet gaits during climbing of supports of small diameter. Bradypus and Choloepus move similarly when on the ground, and while climbing small caliber supports, but differ in their means of climbing larger supports and descending.

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