That advantage should be how fit a person is to mate, but the reason certain belly buttons are more attractive may depend on several aspects of an individual's circumstances. Genetics, health at birth and current health all can play a role in the navel's appearance, Sinkkonen said. "You cannot fake a good-looking umbilicus, so if you do not have enough fat or if you have too much fat, it doesn't look good. If your mother was sick when she was pregnant, it may not be good." Sinkkonen has plans to gather evidence for his hypothesis. In particular, he plans to study which mammals have a visible navel and whether that relates to how much fur they have, and therefore how visible the navel is as a signal to potential mates. "It makes a lot of biological sense," said Gerald Weissmann of New York University School of Medicine and a FASEB editor. "I think it's a novel original contribution; it's a fertile idea." However, Sinkkonen assured, "If you have an umbilicus that you think is ugly, it does not necessarily mean that your genetics is bad." Related Links: |
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