Xavier, Remington, and Jade Estes were born on February 29, 2004, 2008, and 2012, respectively. AdvertisementWhen Xavier, Remington, and Jade Estes sliced their joint birthday cake earlier this month, the numbers on the top said 20, 16, and 12. AdvertisementThe makeup of the Estes family is known only to copy that of an older family in Norway. Heidi, Olav, and Leif-Martin Henrikson — born in 1960, 1964, and 1968, respectively — hold the Guinness world record for most siblings delivered on consecutive leap day years. "Everyone associates leap day with frogs."

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Persons: Xavier, Remington, Jade Estes, —, Estes, Heidi, Olav, Leif, Martin Henrikson —, Louise Estes, Jade, Remington Estes, David, Xander, I'd, Seeley, We'd, Este, wasn't, it's, We've Organizations: Service, Guinness, Brigham Young University, Marvel, Business Locations: Norway, Payson , Utah