In Other Animals
In four-legged animals, the radius is the main load-bearing bone of the lower forelimb. Its structure is similar in most terrestrial tetrapods, but it may be fused with the ulna in some mammals (such as horses) and reduced or modified in animals with flippers or vestigial forelimbs.
Read more about this topic: Radius (bone)
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“Humans are amphibians—half spirit and half animal.... As spirits they belong to the eternal world, but as animals they inhabit time.”
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