> The signal made by the nail stem cells — called Wnt, for all you bio buffs — can orchestrate growth all over the body. It even coordinates the formation of li

> The signal made by the nail stem cells — called Wnt, for all you bio buffs — can orchestrate growth all over the body. It even coordinates the formation of limbs and some organs during fetal development. Lizards do it with Wnt https://pubmed.ncbi.nlm.nih.gov/28233575/ https://pubmed.ncbi.nlm.nih.gov/28233575/ Presumably it's only a matter of time before the penis enlargement industry discovers Wnt.