Seeing double in Nigeria's 'twins capital of the world'

On a normal day a visitor might pass Igbo-Ora with little more than a double-take, wondering why so many pairs of residents wear matching clothes.

But this weekend left nobody doubting what makes the town in southwest Nigeria special.

With fanfare, pageantry, talent shows and even a royal visit, hundreds of people gathered in the self-proclaimed "twins capital of the world" to celebrate its unusually high rate of multiple births.

"There's hardly a family here in Igbo-Ora that doesn't have a twin," said visiting Yoruba king Oba Kehinde Gbadewole Olugbenle, himself a twin.

Yoruba culture reveres twins and their first names are traditionally fixed -- Taiwo meaning 'one that tastes the world' for the eldest child, and Kehinde meaning 'one that came after' for the second-born.

The town stands out even in the wider Yorubaland region, which boasts an above-average incidence of non-identical twins, according to population experts.

The global average birth rate for twins is around 12 per 1,000 births -- but in Igbo-Ora, it is thought to be closer to 50 per 1,000, according to scientific studies and hospital records.

Explanations for the abundance differ.

Many residents put it down to diet, especially okra leaf or Ilasa soup with yam and amala (cassava flour).

Fertility experts -- and several residents -- are sceptical, saying there is no proven link between diet and the high twin rate.

Scientists are looking into genetic factors, and how the twins' special cultural status might make them more likely to find partners and have children.

  'Gift from God'  

Whatever the reason, everyone in the town agrees the abundance of twins is a blessing -- even more so this year as Nigeria grapples with its worst economic crisis in a generation.

Suliat Mobolaji gave birth to twins eight months ago and said the family had been showered with gifts ever since.

"It's changed my life," the 30-year-old said, clutching a son in each arm.

"You can't give birth to twins and remain down on your luck," she beamed. "It's a gift from God."

The whole town echoed her joy on Saturday. At the festival ground, staff rolled out a red carpet for scores of twins both young and old.

They paraded in immaculate matching outfits -- from glamorous sunglasses and patterned adire fabric to a pair of toddlers sporting purple dresses and identical handbags.

Dozens more twins watched from the stands or milled side by side around town.

The organisers -- themselves twins -- say they eventually want to attempt a world record for the largest gathering of twins on the planet.

Taiwo and Kehinde Oguntoye, 39, also said they hope to stage a mass wedding of twin couples next year.

"Twins bring favours, fame and wealth," said Taiwo. "That's why we Yoruba celebrate their birth, and maybe that is the reason why God blessed us in Yorubaland with the highest number of twins in the world."

"It's a blessing," the Oguntoye twins nodded, speaking in unison.