The results suggest that twin fetuses are aware of their counterparts in the womb, that they prefer to interact with them, and that they respond to them in special ways. Contact between them appeared to be planned—not an accidental outcome of spatial proximity, says study co-author Cristina Becchio of Turin.
Twins Become Aware of Each Other in the Utero
According to multiple studies that include 3D ultrasounds, twins start to reach out and touch each other in the womb starting at about 14 weeks. At about 18 weeks, they touch each other more often.
It is likely that twins' awareness of one another starts sooner than seven or eight months of age. An article by the late doctor, T. Berry Brazelton, observed that at age three to four months, an infant identical female twin seemed disoriented when her sister was removed from the room.
"A lot of what goes on between the twins is implicit and unspoken; often they do know what the twin is feeling without having to ask or explain," she said. "It's a knowing without explaining … It's more about the intensity of their bond and closeness rather than being witchcrafty or magical."
Fortunately telling twins apart is one fear that can be taken off the list. Most parents find that mixing up their babies is the least of their concerns. After only a few hours or days at most, they are distinguishable as individuals. Even if they look alike, parents just know the difference.
This is why fraternal twins run in families. However, only women ovulate. So, the mother's genes control this and the fathers don't. This is why having a background of twins in the family matters only if it is on the mother's side.
Twins share the same genes but their environments become more different as they age. This unique aspect of twins makes them an excellent model for understanding how genes and the environment contribute to certain traits, especially complex behaviors and diseases.
Being a twin has its benefits—tricking people, having a lifelong companion, sharing clothes—but it also has downsides. Many twins struggle to cultivate their own identities, while being so similar to one another. And that struggle lasts a lifetime, according to a recent study.
The results suggest that twin fetuses are aware of their counterparts in the womb, that they prefer to interact with them, and that they respond to them in special ways. Contact between them appeared to be planned—not an accidental outcome of spatial proximity, says study co-author Cristina Becchio of Turin.
Just like singleton babies, twins can sometimes get super-active in the womb. But not to worry — there's no real threat from it! Babies can kick or even hit each other (yes, really) in utero, but the good news is the amniotic fluid acts as a cushion to protect them from actually getting hurt by any of it.
For women born 1870-1899, moms of twins averaged reproductive spans of 14 years 11 months versus 14 years for singleton moms. Both results were statistically significant. Moms of twins also were older at the time of their last birth.
Twins are born communicators. Even before very young twins learn language, they can and will communicate non-verbally by looking at each other, staying close together, or hitting each other—and of course playing with each other.
So, the answer to our question seems to be that, no, twins do not have any special spidey sense about each other. They may be very close, very similar in manner, habits and health, but this doesn't mean they share some otherworldly connection that the rest of us don't have.
Identical (monozygotic) twins happen when a single egg (zygote) is fertilised. The egg then divides in 2, creating identical twins who share the same genes. Identical twins are always the same sex, so if your twins are identical, you'll have 2 girls or 2 boys.
Age. According to the Office on Women's Health , women who are aged 30 years or older are more likely to conceive twins. The reason for this is that women of this age are more likely than younger women to release more than one egg during their reproductive cycle.
The reality is that raising multiples is hard. You have double or triple the feeding, diapering, and laundry and, as a result, less time to spend cuddling and getting to know each baby. To be sure, there will be days when you feel as if you're walking up a down escalator.
The authors of the study believe the reason twins live longer may be because of the social support they provide each other, and the psychological and health benefits that come with that social connection. "There is benefit to having someone who is socially close to you who is looking out for you," Sharrow said.
Monoamniotic-monochorionic Twins
This is the rarest type of twin, and it means a riskier pregnancy as the babies can get tangled in their own umbilical cords.
The hardest thing about having twins is…
“Managing the movement of two babies. Carrying them both up and down the stairs, getting them into the car, etc.” —Simeon R. “Often having to make one baby wait!” —Catharine D. “Being outnumbered—the logistics of two on one is definitely the hardest.
At age 7, the mean IQ score of twins was 5.3 points lower than that of singletons in the same family, and at age 9, the score was 6.0 points lower. The lower intelligence of twins in childhood may partly be a consequence of the reduced fetal growth and shorter gestations of twins, say the authors.
They found that twins at first birth were linked to higher divorce rates at 13.7% compared to 12.7% for singletons. The link was statistically higher among moms attending college at 14.4% with twins vs. 10.5% with single births.
The pair can activate their superpowers by touching their rings and saying the phrase "Wonder Twin powers, activate!" Jayna can transform into any animal, and Zan can become water in any state.
They come from the same fertilized egg and share the same genetic blueprint. To a standard DNA test, they are indistinguishable. But any forensics expert will tell you that there is at least one surefire way to tell them apart: identical twins do not have matching fingerprints.