The Science of Twins

The science behind twin pregnancy and birth. Medical research, theories on twinning, telepathy, DNA and more. All the geeky science stuff on multiple birth.

Chances of Getting Pregnant with Twins Twice

What are the Chances of Having Twins… Twice?

The first time around may have been a surprise, but a second pregnancy may have you thinking. What are the chances of ending up with two or more sets of twins? How often do...
Is this the end of the IVF twin boom

The IVF Twin Boom – Is This the End?

Advancement in IVF methods is causing a downturn in the US twin boom. The rate of twin births in the US has exploded since the 1980s, likely due to mothers having babies later, and...
What are Semi-identical Twins

What are Semi-Identical Twins & Why are They so Rare?

Us twin moms often have a laugh at people who ask if boy/girl twins are identical. Just to make it clear… if your kids are packing different junk, they are not identical. Another way...
Knowing whether you are expecting fraternal or identical twins

When You Don’t Know if You’re Expecting Identical or Fraternal Twins

Medical tech can tell us all a lot about our unborn babies, yet some expectant parents don't know if they are expecting identical or fraternal twins. Why?
Drinking Milk Increase Your Chances of Twins

Does Drinking Milk Increase Your Chances of Twins?

A study in 2006 claimed you are five times more likely to conceive fraternal twins if you consume a dairy-rich diet. I’m sharing the science behind this study and looking at worldwide trends for increased...
Do Twins Skip a Generation

Do Twins Skip a Generation?

There are a number of gray areas when it comes to twin pregnancy. Science doesn’t know all the answers yet but the theories are always intriguing. It is commonly accepted that fraternal twins run in...
can twins feel each others pain fi

Can Twins Feel Each Other’s Pain?

It’s been a while since I posted about telepathic twins and other freaky twin stuff, and it’s time to return to the world of the weird and wonderful. Unfortunately the trigger for this research is...
do identical twins have the same DNA

Do Identical Twins Have the Same DNA?

Identical twins are broadly described as having the same DNA. They are naturally occurring clones, created from a single fertilized egg which splits to create two copies. In truth, identical twin genetics is more...
freaky twin stuff

Telepathic Twins and Other Freaky Twin Stuff

I’m in a Twinsie mood, which means today I’m getting my research hat on, and delivering to you some weird and wonderful tales of freaky twin stuff. Twin Telepathy Some time ago, I posted...
identical twins why does the fertilized egg split

Identical Twins: Why Does the Fertilized Egg Split?

Identical twins form when a single zygote (fertilized egg) splits into two, creating a natural clone. There is no sure answer as to why monozygotic twinning occurs, but there are a number of scientific...
Twin Pickle