A new study shows that the embryo and the uterine lining conduct an active "conversation" from the very earliest stages of implantation. They engage in a back and forth of tiny packages called ...

The external uterus permits embryo implantation and embryogenesis. The process of implantation and embryo development was replicated on the external uterus. Osaka, Japan – The use of assisted ...

A new research paper was published in Volume 17, Issue 10 of Aging-US on October 10, 2025, titled "Developmental arrest rate of an embryo cohort correlates with advancing reproductive age, but not ...

When a sperm meets an egg, a lot has to go right for an embryo to develop into a complete organism. One critical step of early development is the reorganization of parental DNA to form a new unified ...

In most eukaryotes, the inheritance of mitochondrion and its DNA (mtDNA) is strictly maternal, despite the fact that a spermatozoon can inject up to 100 functional mitochondria into the oocyte during ...

In a longitudinal study published in Scientific Reports, researchers investigate the effect of maternal physical activity on the size and growth of the yolk sac during early pregnancy. To this end, ...