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  1. Multiple birth - Wikipedia

    Identical triplets or quadruplets are very rare and result when the original fertilized egg splits and then one of the resultant cells splits again (for triplets) or, even more rarely, a further split …

  2. What Are Quadruplets? | Rare Multiple Births

    Quadruplets are four offspring born from the same pregnancy, either identical, fraternal, or a mix of both.

  3. Pregnant with quadruplets? Here's what to know - BabyCenter

    Oct 9, 2025 · There are several different types of quadruplets, including identical quadruplets, fraternal quadruplets, and a mix of the two. Here's how quadruplets are conceived, how …

  4. From Triplets to Quintuplets: Special Names for Multiple Births

    Sep 10, 2025 · Special names for multiple births help identify the number of babies born at once. The development of assisted reproductive technologies, like in vitro fertilization, has led to an …

  5. Alberta mother prepares to welcome ‘miracle’ quadruplets

    4 days ago · Darlene Hensch, who once struggled with unexplained infertility, is now expecting quadruplets and preparing for a high-risk delivery and life-changing journey.

  6. Parents speak out after welcoming identical quadruplets

    Apr 1, 2025 · Marco Vargas and Rachel Vargas hold their newborn identical quadruplets – Sofia, Philomena, Veronica, and Isabel.

  7. What Are the Chances of Having Quadruplets? - Biology Insights

    Aug 14, 2025 · Quadruplets can form through various biological mechanisms, leading to different types: identical (monozygotic), fraternal (dizygotic), or a combination of both. Identical …

  8. Quadruplets: The Facts & How to Conceive Them AU

    The most common variety of quadruplets is formed when four separate eggs are fertilised by four separate sperm. There are however, a range of possibilities when it comes to the different …

  9. All You Need to Know about Quadruplets - Peanut

    Jul 1, 2021 · What are four babies called? Quadruplets. Here’s what you need to know about quads, from the odds of having them to what to expect.

  10. Naturally conceived quadruplets born at UC Davis Children's …

    May 1, 2025 · Experts say there’s a 1-in-700,000 chance of quadruplets being conceived naturally. But the Delgado quadruplets were even more rare. There were three identical babies …