Cell compaction is a crucial step in embryo development. Defective compaction prevents the formation of the structure that ensures an embryo can implant in the uterus. This stage is carefully ...

A stem-cell derived human embryo model showing blue cells (embryo), yellow cells (yolk sac) and pink cells (placenta). Scientists have grown an entity that closely resembles an early human embryo, ...

Researchers have come up with a new 3D model of human embryonic development over the first two months of pregnancy. Known as the 3D Atlas and Database of Human Embryology, it constitutes an important ...

Cumulative probability of conceiving a clinical pregnancy by the number of menstrual cycles attempting to conceive in different age categories (assuming vaginal intercourse occurs twice per week; ...

The development of an animal from a single cell is a process that requires incredible precision. As an embryo grows, different tissues, such as those comprising muscles, nerves, and various organs, ...

Scientists have grown “complete” models of human embryos in the lab with all the known features found in normal embryos around two weeks old. Known as stem cell-based embryo-like structures, or SEMs, ...

Many top UK scientists are calling for the current 14-day limit on embryo research to be doubled to 28-days, so they can study the unexplored secrets of early human development. Lifting the ban could ...

Researchers reveal that the guinea pig pre-implantation embryo is very similar to the human embryo, spurring a better understanding of infertility and early human development. CRCHUM researcher Sophie ...

Scientists have grown an entity that closely resembles an early human embryo, without using sperm, eggs or a womb. The Weizmann Institute team say their "embryo model", made using stem cells, looks ...