PowerPoint Show by Andrew

Perhaps it’s cool to have a twin brother or sister, twins have a special connection being two halves of a whole.

But I can bet these facts about twins make them even cooler than you already thought.

In 2008, a married couple in the UK realized they were twins separated at birth. The children were adopted by different parents, years later, they met and got married without realizing they were siblings. Finally they had to annul their marriage through court.

It is a known fact that the fathers of twins can be different too. Yes, it is possible but the probability of bi-paternal twins to be born is only 1:400.

Women who eat a lot of dairy are also more likely to have twins.

Both Olsen twins had to wear fake teeth during filming of "Full House," because their smiles began to look different with age. The girls were losing teeth at different rates so they had to make identical smiles for Full House episodes.

If a pair of identical male twins has kids with identical female twins, their children will legally be cousins but fully genetic siblings.

The most children born to one woman was 69. Before dying at the age of 40, the woman had 16 twins, 7 triplets and 4 quadruplets. The outstanding woman died at the age of 93 in 2010.

Everyone has a completely unique odor… except for twins. twins share the same DNA and have the same scents. However dogs can be trained to tell one from another even if they live in the same environment and eat identical foods.

Despite being very similar in appearance, Mary-Kate and Ashley Olsen are not identical, but fraternal twins.

The sisters look monozygotic (identical) being fraternal, i.e. they don’t have exactly the same DNA.

The original “Siamese Twins” fathered a total of 21 children, and their descendants now number more than 1,500. Twins Eng and Chang Bunker were born in 1811, spent childhood in the UK, then moved to Thailand.

Ernest Hemingway’s mother would dress him in his sister’s clothes to fulfill her fantasy of having twins. He had a sister named Marcelline, his mother tenderly called him “Ernestine”. Both kids were called by mother “sweet Dutch dollies”. On the picture above, Marcelline and Ernest are standing aside to the left and right.

Identical twins do not have identical fingerprints. Fingerprints are formed in the period of mother’s pregnancy but already after separation of embryos.

Massachusetts has the highest rate of twins in the USA.Five out of each hundred live births in the state are twins.

Twins interact with each other in the womb. At 14 weeks twins may reach one another, at 18 weeks they tend to touch one another more than they touch themselves.

The chances of having a twin pregnancy is increased by maternal age (30+). Women over 35 produce more follicle stimulating hormone (FSH) than younger women. This hormone increases women’s chances to have twins. The same hormone ironically declines woman’s fertility.

Male twins will not have twins unless their wives have the ability to produce two eggs. A female is more likely to have fraternal twins if she is a fraternal twin herself or has already had fraternal twins.

22 % percent of twins are left handed, compared to 10% in singletons. There is even a theory that left-handed people started to develop in the womb as twins.

Nigeria has the highest rate of multiple births and more identical twins. One of the lowest multiple births rate belongs to … China.

The average birth weight for a twin is 5 lbs, 5 oz. But Hannah and Thomas from Derbyshire, UK, didn’t wish to be like others and had a combined weight of 17lb 8oz.

For polar bears, twins aren’t unusual at all. In fact, they most commonly give birth to twins, and rarely deliver single cubs or triplets.