In a study of early embryonic development in primates, an international research team under the leadership of Berthold ...

It's commonly thought that sperm "race" to the egg, with the winner fertilizing it. But is this really the case?

In the United States, more than 11% of men under the age of 49 are infertile. While the causes are varied and range from ...

Munich news, health insurance, technology, jobs and other topics for expatriates. The Eye Newspapers covers daily news and offers services for foreigners.

A genetic mutation in mice affects cells required for sexual reproduction and holds clues about male infertility that could pave the way for new treatments and male contraceptives, a Rutgers ...

They are formed in a woman's body before birth and have to be on standby for decades to possibly be fertilized one day. But ...

While the causes are varied and range from infections to hormonal imbalances, deformities during meiosis – a specialized cell division process that creates sperm and eggs – is a leading cause.

These primordial germ cells are initially "bipotent" - able to become either sperm or eggs. But while the embryo is still snug ... The companion paper shows that well before the germ cells enter ...

Two new studies show how a seeming tangle of DNA is actually organized into a structure that coordinates thousands of genes to form a sperm cell. The work, published as two papers in Nature Structural ...

Two new studies uncover how DNA folding controls sperm cell development. Researchers identified proteins that rearrange genomic architecture, setting cellular memory and fate.