Sharks do not have a belly button. They are born from eggs that hatch inside the mother's body, and the baby sharks are nourished by yolk sacs rather than umbilical cords.
The belly is big because inside is the baby growing
Baby
A baby inside the womb is called a fetus.
In the uterus
The mother is then pregnant. Its called a foetus.
a baby crocodile squeaks inside its egg calling for its mother.
the egg cells job is to make the baby inside of the woman's belly
Two miscarriages, one abortion, no baby born.
Because there is a baby inside you it has grown for 9 months and your belly needs to be able to carry it
There are no reasons to get anything pierced, it's a personal decision for personal reasons. If you are looking to get someone to talk you into something then body piercing is not for you. Body piercing is a persons decision of how they define themselves, not open to others opinions or motivation.
the baby chimpanzees hang on to the mothers belly or back.