do cats have belly buttons

In cats, the belly button is not as prominent as it is in humans because cats have a thinner layer of fat around their abdominal area. The navel serves no real purpose in adult cats and is simply a vestigial mark from their time in the womb.
During kittenhood, the umbilical cord provides the kitten with essential nutrients and oxygen from the mother's blood supply. After the kitten is born, the umbilical cord is cut and the kitten begins to breathe on its own. The stump of the umbilical cord eventually dries and falls off, leaving the belly button.
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