Lawmaker has introduced a bill requiring Utah schools to show students videos of fertilization and development of a fetus ...

When sperm meets egg, the start of life is not quiet. Under a special microscope, researchers have watched a tiny light show at fertilization. They see a microscopic flash at fertilization, a burst of ...

Some newly reported clumps of cells growing in lab dishes have been hailed as the closest things to human embryos that scientists have ever made in the lab. These entities are human embryo models — ...

(a) Fluorescence images showing the chromatin in FGO stained with DAPI. Scale bar, 20 μm. Yellow triangles indicate DAPI-dense heterochromatin foci and the red triangles denote the nucleoli or NLBs.

Researchers have used naïve pluripotent stem cells to create an embryo model that looks and acts like a natural human embryo. They say it’s an ethical way of gaining a better understanding of ...