Researchers have used stem cells to develop new human embryolike structures that model the earliest stages of fetal development so realistically that they even secrete hormones that can turn a lab ...

Two to three weeks after conception, an embryo faces a critical point in its development. In the stage known as gastrulation, the transformation of embryonic cells into specialized cells begins. This ...

A lot happens in the first month of human embryo development as a single cell morphs into multitudes. Yet despite its significance, this period is basically a “black box” to researchers, says stem ...

Researchers at Sinai Health have found that a critical transition in early human development is regulated not by our genes, but by DNA elements called transposons that can move around the genome. The ...

A University of California, Riverside study reports that cells in the earliest stages of human development could be ...