By engineering a system replicating the womb lining with high biological accuracy, researchers at the Babraham Institute and ...

The team placed blastocysts—embryos 5-6 days after fertilization that were donated following IVF procedures—onto the ...

Researchers have gained new insights into the mechanism behind the spatial organization of DNA within the cells of early embryos. When an embryo is first formed after fertilization, each cell has the ...

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 ...

Seals give birth only when conditions are right. After mating, a female seal can delay implantation of the embryo in the ...

The University of Alabama at Birmingham health system has paused infertility treatments after the Alabama State Supreme Court ruled embryos created during in vitro fertilization should be legally ...

Research into how a father’s choices — such as diet, exercise, stress, nicotine use — may transfer traits to his children has ...

The majority of fertilized eggs die and are resorbed into the body. ZEISS Microscopy/Flickr, CC BY-SA As an evolutionary biologist whose career has focused on how embryos develop in a wide variety of ...

(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.