Bellybuttons vary in appearance due to individual differences in how the umbilical cord was cut and how the body healed after birth. Factors such as genetics, the method of childbirth, and the care taken during the healing process can affect the shape and size of the bellybutton. Additionally, some people may have surgical scars or conditions that further influence their bellybutton's appearance.
Dolphins are placental mammals. All placental mammals have bellybuttons of some kind.
Cats are placental mammals, and all placental mammals have bellybuttons of some sort.
Not by itself. But some people lose their bellybuttons due to surgery b/c of injury or sickness.
Yes, they do eat bellybuttons. It's their favorite food!
As a matter of fact, dolphins do have bellybuttons. All mammals have them because that is where their umbilical cord was connected.
Yes.
no
Umm, no ;)
Mammals, yes.
James baldry
Abnormality in cell growth and the cell cycle leading to cancer
no pigs dont have belly buttons