I believe that balding/recession issues come from the mother's side, so the person to look at would be his maternal grandfather. Er. Because you wanted a biological explanation. I actually used to know all the genetic factors that went into balding patterns, but I cannot remember them... but I do have a vague memory of the maternal line defining whether a boy has hair loss or not.
IMO looking at the picture, either his hairline is receding, or he's combing it in a different way that just emphasizes the pattern of his hair...
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timeasmymeasure
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Date: 2014-09-19 11:35 am (UTC)IMO looking at the picture, either his hairline is receding, or he's combing it in a different way that just emphasizes the pattern of his hair...