FILE - In this Aug. 14, 2013, file photo, an in vitro fertilization embryologist works on a petri dish at a fertility clinic in London. Tens of thousands of people undergo in vitro fertilization every ...

ALTHOUGH simple parthenogenesis is not at all uncommon in invertebrates — for instance, in ants and bees — it does not, as far as is known, occur in human beings, who must produce eggs and sperm and ...

Megan Molteni reports on discoveries from the frontiers of genomic medicine, neuroscience, and reproductive tech. She joined STAT in 2021 after covering health and science at WIRED. You can reach ...

Female embryos exert a greater influence than male embryos over the hormone that nurtures early pregnancy, and the difference can be detected as little as 16 days after conception, according to new ...

Women who use a class of tranquilisers called benzodiazepines before becoming pregnant are at greater risk of ectopic pregnancies, according to a study of nearly 1.7 million women. The study, which is ...

Scientists from the United States and the United Kingdom have revealed, in a first-of-its-kind study, that they were able to grow human eggs in a lab. Their achievement could someday lead to new ...

Researchers produced the immature egg cells (seen in pink) out of stem cells created using human blood Saitou Labs A team of Japanese researchers has successfully created oogonia, or primitive ...

In a common metaphor used to describe human fertilization, sperm cells are competitors racing to penetrate a passive egg. But as critics have noted, the description is also a 'fairy tale,' rooted in ...