Why do we have navels?

Navels, or belly buttons, are the remnants of the umbilical cord that connected a developing fetus to its mother during pregnancy. The umbilical cord supplies nutrients and oxygen from the mother and removes waste products from the fetus. After birth, the cord is cut, and the remaining tissue eventually dries up and forms the navel. Thus, a navel serves as a physical reminder of our early developmental stage and the connection to our mother.