Yes. Most twins are born within minutes of each other. Even so, those minutes of separation could have them born on different days. They are still only minutes apart in birth but calendar-wise one is older than the other.
The longest interval between the birth of twins is 90 days, in the case of Molly and Benjamin West, dizygotic (fraternal) twins born in Baltimore, Maryland, USA to parents Lesa and David West (all USA) on 1 January and 30 March 1996.
As a parent of twins, I'm pretty sure that you know the answer to the question “which twin is older?” It is, of course, the child that was born first.
Twins with different birthdays are rare, and the chance of twins being born in different years is 1 in 2 million, according to the news release by Natividad. Though the incident is rare, it's not the first time twins have been born in separate years.
Medically, this 7-year defect is very rare. Twins are typically born with a bit of a delay — a few minutes to a few hours. Some even have separate birthdays, due to being born just before and just after midnight.
Yes, you read that right. Twins (non-identical) can be born at completely different times, sometimes even years apart.
In other words, they were not born during the same gestational period. Calling them Irish twins is just an informal way of classifying siblings that are born close together. Some actual twins have different birthdays due to one being born on one day and the other staying in the womb for days or weeks longer.
The Wallman twins from Indianapolis, Indiana were born at 11:59 p.m. Friday, December 31, 1999, and 12:01 a.m. on Saturday, January 1, 2000. Additional millennial-straddling twins were reported in Oklahoma, Virginia, Washington, and Germany. That's something we won't see again for another one thousand years.
For twins Amy and Katie were incredibly born 87 days apart. Maria went into labour four months early, giving birth to Amy – but Katie did not arrive until three months later. Their incredible births will now become a Guinness World Record for the “longest interval between the birth of twins”.
Vaginal Birth of Twins
This means you will have to push twice, but the majority of the time the second twin is born much more easily than the first. This is because the first twin has paved the way, so to speak. The average time between the birth of the first and second baby is generally about 17 minutes.
Identical twins are almost always the same sex, although there are some rare exceptions to this rule. Because identical twins occur when a single fertilized egg splits and forms two embryos, each embryo has the same chromosomes (usually, XX for girls or XY for boys).
You Can Only Control the Things Within Your Control. “Having twins is not twice as hard—it's exponentially more difficult,” says Natalie Diaz, author of What To Do When You're Having Two and CEO of Twiniversity, a global support network for parents of twins.
Identical twins may start out with the same genetic make-up but they drift apart genetically as the years pass, says an international team of researchers. Their study of identical twins show chemical changes after birth alter the way genes are expressed, a process known as epigenetics.
A gap of 3 years or more greatly reduces the chances of sibling rivalry. By this time the older child is secure in him or herself and quite independent. In addition, the mother's body is fully recovered from the challenges of pregnancy and birth of the first child.
However, depending on the time of day the babies are born and how long the timespan is between each baby's birth, twins can be born on different days. Twins are defined as two offspring born together, but that doesn't necessarily mean they are born on the same date.
Sisters Annie and Effie Scott were born on New Year's Eve 2022 and New Year's Day 2023, respectively. Kali Scott's twin daughters were born six minutes apart on New Years Eve into New Years Day.
“There are about 120,000 twin births in the U.S. every year, making up just over 3% of all births. However, twins with different birthdays are rare, and some estimate the chance of twins being born in different years as one in 2 million,” the medical centre added.
Fraternal twins (dizygotic)
Fraternal twins, also called dizygotic twins, develop when two sperm fertilize two eggs separately — often because a mother has released two eggs at the same time during ovulation.
Most sets of Twins
1707–c. 1782), a peasant from Shuya, Russia, gave birth to 16 sets of twins.
The first wife (died ante 1770), of Feodor Vassilyev (b. 1707–c. 1782), a peasant from Shuya, Russia, gave birth to 16 sets of twins.
The Dutch Twins are Kit and Kat, 5 years old and not yet big enough to be called by their real names, Christopher and Katrina. They live in a typical Dutch household, around the turn of the last century. The book follows their day-to-day adventures and accidental mishaps.
What is it? 'Mirror image' is a type of identical twinning. It can happen in any type of identical twins. When the split occurs late - more than a week after conception - the twins can develop reverse asymmetric features. This term is not really a type of twin, just a way to describe their physical features.