Chemicals were then used to coax these stem cells into becoming four types of cell found in the earliest stages of the human embryo: epiblast cells, which become the embryo proper (or foetus ...

Model used to create a cellular 'hologram' of a mouse embryo could be used to visualize development in any species.

Basic knowledge such as the development and physiology of both male and female reproductive systems is covered, with practical aspects of IVF including gamete and embryo manipulation, cryopreservation ...

Figure 2: Sexing litters of preimplantation and midgestational stage embryos. Additionally, blastocyst stage (E3.5) embryos from a cross between D4/XEGFP transgenic males and wild-type ICR females ...

Early-stage embryos are simply too small to observe with ultrasound; at 14 days, they are just barely perceptible to the naked eye. Keeping them alive outside the body for that long is difficult.

The videos are part of a new atlas of embryos called Zebrahub, which shows where cells are located and what they're doing at different stages of development. The atlas combines high-resolution ...

This pithy bit of jargon, when translated into English, asserts that as an embryo develops, it passes through stages that are equivalent to the adult forms of its ancestors. For example ...

Although IVF is commonly used in many species from livestock to humans, it has historically met with little success in horses ...

The synthetic embryos - only days or weeks old - could help researchers study the earliest stages of human development and explain pregnancy loss. Nobody is currently suggesting growing them into ...

Early development of an embryo is solely supported by maternally deposited RNAs and proteins until its own genome is activated through a process called zygotic genome activation (ZGA). Recent work by ...