Other than lack of a tail, all ape bodies have long curved fingers which represent adaptation to suspensory locomotion.
Suspensory locomotion is type of a feeding behavior or an arboreal locomotion which involves the suspension or the hanging of the body of an organism from a tree. Apes developed some adaptations which help them in this type of locomotion. These adaptations include a lack of tail, a vertical posture, conical rib cage, a mobile lumber vertebrae, wrist rotation, scapulae on their back, grasping limbs with shortened thumbs and long curved fingers.
All these adaptations help the ape to climb and suspend themselves from the branches of the trees and also helps them achieve a swinging motion.
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