Mouse embryo cells undergo apical-basal polarization asynchronously at the 8-cell stage, and the timing of polarization influences subsequent lineage allocation.

Clare Kilcullen always wanted to be a mother, but when she went through early menopause in her 20s, she wasn't sure how that would happen. "[I thought] it would probably be an egg donor, but then in ...

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 ...

A digital illustration featuring the White Rabbit of ‘Alice in Wonderland’ has gone viral, signaling that time is running out—what does the meme mean, and where did it come from? The clock is ...

University of Cambridge scientists have used human stem cells to create three-dimensional embryo-like structures that replicate certain aspects of very early human development—including the production ...

Baby Thaddeus Pierce began as a embryo that was frozen for more than 30 years. He holds the record for developing from the longest-frozen embryo known to result in a live birth. His mom was 4 and his ...

ST. LOUIS — Samantha was an embryo frozen in time for approximately a decade before a middle-aged single mother said yes to her birth. That mother was Dawn Jones-Goldstein, a 46-year-old Eureka woman ...

A team of researchers at the Institute for Bioengineering of Catalonia (IBEC) in Spain has succeeded, for the first time, in recording in real time and in 3D the implantation of a human embryo. This ...

Rabbits with growths that resemble horns or tentacles have been spotted around Colorado, but wildlife officials say humans and their furry friends have little cause for concern. The animals' grotesque ...

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 ...

A confocal microscopy image of a nine-day-old human embryo, with specific proteins and cellular structures colored distinctively. Green relates to embryonic stem cells and magenta associates with ...

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 ...