Anchiornis's wrist bone was so wedge-shaped that it could fold its arms to its sides, keeping its arm feathers off the ground as it walked.

近鸟龙的腕骨呈深楔形，因此它可以将前肢折叠到身体两侧，行走时前肢上的羽毛可以悬空，不会拖在地面上。

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So the panda must… settle for an enlarged wrist bone and a somewhat clumsy, but quite workable, solution, " wrote Stephen Jay Gould in 1978."

所以一定要…解决一个问题——进化出粗大的腕关节骨和一种虽然有些笨拙但是管用的解决方案”Stephen Jay Gould 写到，1978年。

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Wrist circumference was calculated using a cloth tape measure, and 51 of the children also underwent imaging tests to precisely measure wrist bone vs. wrist fat.

使用卷尺测量手腕大小，并51名儿童亦通过影像学检测精确的测定腕骨与腕部脂肪的比例。

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The results show that the mole's second thumb is not a real digit but starts out as a wrist bone, the scientists report in Biology Letters.

BBC: Mystery of mole's second thumb solved

Mr. Browne, with his shrunken suits, is the designer mainly responsible for a look, particularly popular with young stylish men, that includes wearing pants slightly above the ankle and sleeves ending above the wrist bone.

WSJ: Fashion World Digests Michelle's Choices

Height loss can alert doctors to osteoporosis that other tests miss, particularly those that measure bone density in the wrist or hip.

WSJ: Health Journal: Yes, You Are Getting Shorter