In Pics! Baby girl born from record-setting 27-year-old frozen embryo in US

Twenty-seven years in the making! In 1992, Tina Gibson's embryo was frozen and placed in a cryogenic freezer in the Midwest. It was in frigid hibernation for two decades.

In 2012, the frozen embryo was packed in a liquid nitrogen shipper and sent to an embryo adoption facility via FedEx, according to a report.

In February, the embryo was thawed and transferred to the uterus of Tina Gibson, who had been praying for a baby for five years.

Research staff at the University of Tennessee Preston Medical Library said that "the longest-frozen embryo may have come to birth, setting a record". The baby beats the record set by her older sister, Emma Wren Gibson, 29, who had come to life after being a frozen embryo for 24 years.

"Some couples discard their embryos or are unwilling to donate them because they say they're too old... No, we don't think there is such a thing as too old," said Jeffrey Keenan, medical director of the Knoxville, Tennessee-based National Embryo Donation Center (NEDC).

The 29-year-old woman and her husband, Ben Gibson, first approached the NEDC in 2016 after searching for embryo adoption for months.

Embryo adoption involves implanting in uterus leftover embryos from couples who pursue in vitro fertilisation.

Tina said her parents first mentioned the idea to her while the couple was dropping off their dogs with them before a vacation. At first, the Gibsons brushed off the possibility as they were interested in "traditional" adoption.