Nine-banded armadillos nearly always have litters of four babies, identical quadruplets. Armadillo babies look very much like adults, but are smaller and softer than their armored parents.

What animal always has quadruplets?

Nine-banded armadillos almost always give birth to four identical quadruplets. At birth, the carapace of the offspring has not yet hardened and the unprotected young are extremely vulnerable to predation.

Do all armadillos have quadruplets?

“Uniquely among mammals, armadillos always have genetically identical quadruplets,” said CSHL computational biologist Jesse Gillis. ... Researchers who study nine-banded armadillos (Dasypus novemcinctus) had long noticed that genetically identical quadruplets frequently look and act differently from one another.