Scientists have found microplastics in human semen and follicular fluid, according to new research on a small group of adults ...

Natural foods dense in essential nutrients are being increasingly recognised for their ability to enhance reproductive ...

For the first time, mice born to two fathers have grown up and produced offspring, scientists in China reveal.

The active formative power for this process was thought to come entirely from the man – the existence of the human ovum (egg), like so much of basic biology, was unknown.

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While animal eggs await fertilization, their cell cycle needs to be halted. The molecule responsible for this arrest ? the cytostatic factor ? was first described in 1971. But its identity was not ...

A new international study presented today at the 41st Annual Meeting of the European Society of Human Reproduction and Embryology (ESHRE) reveals that IVF cycles involving male partners over the age ...

There’s a basic ‘chicken and egg’ problem afflicting the nascent industry, in which there’s no market without demand, and no demand without a market.

The sperm cells swim to find egg cells. When a sperm fertilises an egg, a sporophyte is formed that remains attached to the gametophyte. It grows as a stalk, emerging with a capsule at the end.

Stem cells in turn could become sperm and egg cells, which would be used in conservation breeding or even cloning. The International Union for Conservation of Nature estimates that more than ...

Molecular biology articles from across Nature Portfolio. Atom; RSS Feed; Definition. Molecular Biology is the field of biology that studies the composition, structure and interactions of cellular ...