Only one creature in the animal kingdom consistently gives birth to identical twins. Name this animal.

The nine-banded armadillo is the only animal known to always have identical twins. According to American Scientist magazine, this is because the nine-banded armadillo females have such a small site for an egg to be implanted that the egg-splitting increases the litter size from one to two.

Asked by Tom Cohen · Last updated 5 years ago · 1.1K views