On our arrival in Nigeria's self-proclaimed capital of twins to investigate the proliferation of multiple births in the small rural town of Igbo-Ora, we are greeted by the news that a woman has just delivered a healthy pair of babies at the local clinic.
Their mother is a twin - her twin brother is in the ward taking photos of the new arrivals, his nephew and niece. Surrounding the bed are the babies' grandmother, who is herself a twin, and their great-grandmother, who has given birth to two sets of twins.
"That's how we do it here. We give birth to twins. It makes our town special," the five-hour-old twins' grandmother tells the BBC.
"It makes us proud and we love them. We love our twins. They bring us success," she says.
"People are disappointed if they don't give birth to twins."
It is true that Igbo-Ora, in south-western Nigeria, appears to have a higher-than-usual number of twins - walking through the town it is easy to spot younger sets of twins, who tend to wear matching clothes.
The global average birth rate for twins is around 12 per 1,000 births, but in Igbo-Ora it is reported to be about 45 per 1,000.
In Yoruba culture, which predominates in the south-west of the country, twins are a blessing and their names are predestined.
Irrespective of gender, the older twin is called Taiwo, meaning "the one that tests the world", the younger is called Kehinde, meaning "the one that came after".
The next day, at Igbo-Ora's high school we find out that these names tend to dominate roll-call. When we ask a group of around 1,500 students during morning assembly to raise their hand if they are a twin, or have a twin in the family, nearly everyone's arm shoots up.
So why are there so many twins in the area?
According to oral folklore, the village was founded in the 14th Century by an exiled prince of the Oyo Kingdom, who was told to make specific offerings to the Yoruba gods in pairs and in return, the village was blessed with twins.
Many locals though put their fertility down to a dish called "ilasa", made from okra leaves. These spinach-like leaves are added to a pot of boiling water along with salt and spices, locust beans and melon seeds.
The reason behind Igbo-Ora's multiple births is a genuine subject of study in Nigeria.
Only a minority of the twins born in Igbo-Ora are identical - when one egg is fertilised and then divides. The majority are non-identical, meaning multiple eggs are released and fertilised at the same time. Researchers are investigating whether natural chemicals in the local food, like ilasa or perhaps even the local yams, might make women produce multiple eggs. Prof Akinola Kehinde Akinlabi, rector of the Oyo State College of Agriculture and Technology based in Igbo-Ora, thinks genetics may have more to do with it.
The academic, who is himself a twin - and father of twins, says someone born a twin in these parts will not find it hard to find a wife or husband.
"Twins are venerated almost as deities who bring good fortune and protection. People present twins and their families with gifts, money and offers of help. All that encourages people to marry those from twin-producing families," he tells the BBC.
The traditional ruler of the town, known as an oba, is eagerly awaiting the results of scientific studies.
Jimoh Olajide hopes that in a country with a love of setting Guinness World Records, Igbo-Ora will soon be officially recognised for its phenomenal fertility - given nearly every home in town has at least one set of twins.
"My vision for this town is to see us holding the world record for highest multiple births in the whole world," says Oba Olajide, who is of course a father of twins.
"Things that will follow will be tourism, hotels."
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