University of Sheffield and University College London researchers have made the first successful detection of estrogen, ...

A new study has shown the ovary’s tissues and cells play a bigger role than previously thought in how fertility wanes.

For more than a century, scientists have debated whether intelligence is mostly a product of nature or nurture. Identical ...

Once a sperm has broken through to an egg cell in order to fertilize it, the two cells need to hold together tightly. This ...

More twin babies are being born today than at any other time since records began. In fact, approximately 1.6 million twin ...