Artificial ovaries are on the horizon after scientists created the first cellular-level map of human egg formation. The University of Michigan used five donated ovaries to carry out state-of-the-art ...

Egg cells are by far the largest cells produced by most organisms. In humans, they are several times larger than a typical body cell and about 10,000 times larger than sperm cells. There's a reason ...

Investigators have employed mutant mice to study how the accumulation of genetic errors is managed during egg and sperm formation. Sometimes the best way to understand a biological process is to ...

The process of egg formation in fruit flies relies on physical phenomena analogous to the exchange of gases between balloons of different sizes, according to a new study by biologists and ...