Why Armadillos Always Have Identical Quadruplets | Smartest Year Ever (June 20, 2025)
About this episode
Why does this strange, armored mammal give birth to four identical clones—every single time?
Welcome back to Smartest Year Ever, where Gordy shares daily deep-dives into the wildest facts on Earth. And during Weird Animals Week, things only get stranger. Today’s episode investigates one of the most bizarre reproductive strategies in the animal kingdom—a cloning method used by the nine-banded armadillo. From delayed implantation to medical research, and even a connection to leprosy, this little creature packs more surprises than most science fiction.
Watch to find out what makes this natural Xerox machine tick—and why it might hold secrets about cloning, immunity, and stem cells.
Sources:
Loughry, W. J., & McDonough, C. M. (2013). The Nine-Banded Armadillo: A Natural History. University of Oklahoma Press.
Prodöhl, P. A., Loughry, W. J., McDonough, C. M., Nelson, W. S., & Avise, J. C. (1996). Molecular documentation of polyembryony and polygamy in the nine-banded armadillo. Proceedings of the National Academy of Sciences, 93(2), 810–813.
National Institute of Allergy and Infectious Diseases. (n.d.). Armadillos and Leprosy.
Taulman, J. F., & Robbins, L. W. (1996). Recent range expansion and distributional limits of the nine-banded armadillo in the United States. Journal of Biogeography, 23(5), 635–648.
#AnimalFacts #Armadillos #WeirdAnimals #biologyfacts #wildnature #DailyFacts #DidYouKnow #naturefacts
Music thanks to Zapsplat.
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