In everyday conversations, the terms 'sperm' and 'semen' are often used interchangeably. In biological terms, however, they ...

In the intricate science of reproduction, the creation of offspring has long relied on the union of sperm and eggs, whether naturally or through assisted techniques like in vitro fertilization. Both ...

Our cells constantly receive DNA damage from factors such as ultraviolet rays, irradiations, toxins and chemicals. For women, ...

The new method accurately identifying high-quality sperm cells without using potentially harmful chemical dyes.

As researchers grow sperm and eggs from stem cells to produce life in a lab, will it change the concept of birth and gene ...

According to incoming Trump administration officials, the executive order defines biological sex on the basis of gametes, reproductive cells that come together for sexual reproduction.

The order, signed last week, defines a female as “a person belonging, at conception, to the sex that produces the large reproductive cell.” Male, according to the order, means ”a person ...