It is not unusual to have at least one set of twins in a school. A high school in Winnetka, Illinois has more than one set of Twins. In fact, the school has broken the record for having 44 sets of twins. The high school is now in the Guinness World Records for breaking two records that have nothing to do with academic achievement or skills. One record was for the most twins and the other one is for having the most multiple births in the same school year.

It is interesting that all of the twins are not just in the same school, they are in the same class at New Trier High School located in the suburbs of Chicago.

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All of the twins and one set of triplets are in the sophomore class. The twins and Triplets actually make up 90 percent of the sophomore class. All 91 students posed for a group photo at their school last Wednesday.

Options

With that many twins in one class, school principal Denise Dubravec told ABC News that parents are usually given the option to decide if they want both of their children in the same class. However, Dubravec said she doesn't think it was an option for this class. Instead, the school took the liberty of separating them. Even so, the students have a special bond because they all have something in common.

Usually, if only one set of twins is at a school, the twins stand out. That is not the case at New Trier High School because there are plenty of twins in the same class. Other classes in the school also have twins but not as many as in the sophomore class.

The odds

The 91 students out of a class with over 1,000 students exceed the national average for multiples by almost three times. The number of multiple births at New Trier breaks the previous record held by Highcrest Middle School that's in the area with 24 sets of twins.

Of the 44 sets of twins at New Trier High School, 19 sets include two girls and 11 sets include two males, and 14 sets consist of a boy and a girl. Only four sets are identical, but the triplets are all girls. Two sets of parents have two sets of twins. So, what's in the water?

Not because of the water

Nancy Fendley is the mother of 15-year-old Luke and Ryan who submitted the application to Guinness World Records. She admits having 45 sets of multiples in one class is astounding. She says it has nothing to do with the water in the area. Instead, she believes the high number of multiples is due to demographics.

Fendley said the community is made up of financially secure residents who wouldn't have a problem getting costly fertility treatments that give them a greater chance of having multiple births. Fendley was probably speaking from personal experience.