In July 1932, young pathology resident Elizabeth M. Ramsey was performing a routine autopsy with a colleague at New Haven Hospital when she made an extraordinary discovery: an apparently normal human ...

Scientists have gotten an unprecedented look at how the human embryo implants in a uterus. They did this by creating very primitive, womb-like environments in the lab. "This is really important work ...

In 2018, Chinese scientist He Jiankui shocked the world when he revealed that he had created the first gene-edited babies. Using Crispr, he tweaked the genes of three human embryos in an attempt to ...

During in vitro fertilisation (IVF), embryos undergo genetic testing before they are transferred to the uterus – but researchers have found that a widely used test cannot detect genetic abnormalities ...

Extracellular matrices surrounding eggs in fish (chorion) and mammals (zona pellucida [ZP]) regulate gamete recognition before fertilization, though their mechanisms differ. Mouse sperm bind and cross ...

Researchers have captured the very first real-time, three-dimensional images and videos of a human embryo implanting into synthetic uterine tissue—revealing a key stage in reproduction. The resulting ...

A baby boy born to an Ohio couple developed from an embryo that had been frozen for more than 30 years — believed to be the longest storage time before a birth. Tim and Lindsey Pierce in November 2024 ...

A baby boy born last week to an Ohio couple developed from an embryo that had been frozen for more than 30 years in what is believed to be the longest storage time before a birth. In what's known as ...

A baby boy born last week to an Ohio couple developed from an embryo that had been frozen for more than 30 years in what is believed to be the longest storage time before a birth. In what's known as ...

The embryos were created in 1994, while the expectant father was still a toddler, and donated via a Christian “embryo adoption” agency. A baby boy born over the weekend holds the new record for the ...