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Geeky Question: Fingernail size /profile on strong climbers?

Original Post
jaredj · · Unknown Hometown · Joined Jan 2013 · Points: 165

When pictures or video show close-ups of strong climbers' hands (say, when they're gripping the rock), it frequently appears to me that their fingernails are relatively broad in comparison to their fingertip.  I believe a more precise statement is that their "lateral nail fold" is relatively narrow compared to the overall population.   Is there adaptation / shaping of the nail (or distal phalange part of the finger) that occurs with repeated / hard stimuli?  Just coincidence?  

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