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 human embryo embeds itself into a fake uterus created by researchers. Screenshot from an Institute for Bioengineering of Catalonia video Sixty percent of miscarriages are caused by the failure of an ...

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 ...

In 2016, two Japanese reproductive biologists, Katsuhiko Hayashi and Mitinori Saitou, made an announcement in the journal Nature that read like a science-fiction novel. The researchers had taken skin ...

As far back as 2015, scientists have been warning against using CRISPR-Cas9 technology to modify germline genomes. Indeed, a perspective published that year in Science suggested that otherwise ...

For sexual reproduction to yield healthy offspring, newly generated oocytes—immature egg cells—must receive the correct amount of DNA after cell division. This process of segregating chromosomes ...

Scientists have discovered that the cells of early human embryos are often unable to repair damage to their DNA. The researchers say that this has important implications for the proposed use of gene ...