For most women, midwives are a vital part of the labour and birth process. They give medical support, advice and cheer mums on when they're at their most vulnerable, helping the baby make a safe entrance into the world.
One woman, however, has a whole other idea of what a midwife should do. She wants hers to be a dolphin.
Darina Rosin plans to give birth in the water, accompanied by a dolphin – partly in the hopes it will help her baby learn to "speak Dolphin".
Rosin and her partner Maika Suneagle, who run a healing retreat on Hawaii's Big Island, recently shared their birth plan on the UK documentary Extraordinary Births.
Host Katie Piper said all the couples on the program – others are planning a lotus birth, and another mum is a weightlifter – offered "eye opening" points of view, but that the "dolphin people were a bit out there".
"But they seemed happy and the woman was so relaxed," she said.
"Dolphins are clever and [Rosin] felt really connected to them. I thought, well it isn't for me but it's right for her.
"You know, happy mum, happy baby!"
Rosin has written about her love of dolphins and sea life in the past. "In 2011 and 2014 I had the privilege to learn from and with wild and free dolphins and Humpback whales in Hawaii who transformed and healed me in a very profound way," she wrote on a blog.
"I felt deeply called to spend two times three months in nature – mostly by myself – and to deeply connect to this magical place of beauty and transformation inside and outside which called me home."
Although the couple have been criticised – some experts say that the action could attract sharks – they won't be the first to give welcome a child in the presence of a dolphin.
In 2011, a video that showed a woman giving birth surrounded by "dolphin midwives" in Israel was shared on YouTube.
According to the accompanying article on Wake Up World, the woman had been planning to give birth in the water when three dolphins approached her in two feet of water. "[They] pushed everyone out of the way and took over. They scanned the length of her body (with sonar?), which somehow relaxed the mother and child and gave birth with no pain or fear," the article says. "This opened up the new practice of 'Dolphin mid-wivery'."