Do birds have belly buttons?

Great question! Since we mammals receive our belly buttons from detaching the umbilical cord after birth, a bird would not have the exact same structure. However the developing avian embryo is attached to the yolk sac of the egg via a cord. read more

Well, get this: Inside a bird's egg there is a tiny cord that connects the developing embryo to the yolk sac. When the egg cracks open, the hatchling does in fact have a miniscule residual scar where the cord was. read more

Great question! Since we mammals receive our belly buttons from detaching the umbilical cord after birth, a bird would not have the exact same structure. However the developing avian embryo is attached to the yolk sac of the egg via a cord. This cord is severed after the bird hatches, leaving behind a small scar. read more

However, as the bird develops, that area becomes more compact and in an adult bird there is virtually nothing to be seen of what once was the scar. So technically baby birds have belly buttons, but unlike the belly buttons of humans, these go away as they grow up. read more

Since we mammals receive our belly buttons from detaching the umbilical cord after birth, a bird would not have the exact same structure. However the developing avian embryo is attached to the yolk sac of the egg via a cord. read more