Men have nipples because embryos are sexually neutral for their first six weeks. Here's the developmental blueprint behind ...

By tracking neural crest cells in catshark embryos, researchers discovered that the molecular toolkit behind face-building is ...

A MedUni Vienna study team led by geneticist Markus Hengstschläger has used a stem cell model to model the earliest stages of embryonic development and to characterize the membrane that surrounds the ...

If you look at a nerve cell, a muscle cell, or a skin cell under the microscope, they appear strikingly different. However, every cell in our body has the same DNA and has descended from a common ...

As a PhD student in the 1920s, she moved a lump of cells from embryos of one newt species into another. The transplanted ...

The selection of high-quality embryos is essential to enhance the implantation rate for in vitro fertilization (IVF). Optical coherence microscopy (OCM) can noninvasively provide three-dimensional (3D ...

An international team of experts in embryology and bioethics has published the first white paper on the use of embryonic ...

Scientists have sought to capture the first days of how a person comes to be, by recreating those early moments in a lab via models made up of induced pluripotent stem cells, or IPSCs. Subscribe to ...

Healthy development The researchers found that higher variability in cell division leads to a more optimal arrangement of cells within the embryo, which promotes healthy development. "Our work ...

In order for vertebrate embryos to develop their body axes, they require what is known as an embryonic signaling center. This ...

Australian scientists have discovered quail eggs can help them understand birth abnormalities and other developmental health concerns. They use these eggs to observe embryos in real-time and in high ...

Add Yahoo as a preferred source to see more of our stories on Google. As an evolutionary biologist whose career has focused on how embryos develop in a wide variety of species over the course of ...