Developing a drug that inhibits sperm production without causing any hormonal changes could be the answer we’ve been ...

Humans are sexual, meaning that both a male and a female are needed to reproduce. Each is equipped with specific organs capable of producing specific cells needed to procreate. In conjunction with a ...

A team has discovered an RNA coding for a micro-peptide - a very small protein - that plays a crucial role in the competition between spermatozoa from different males of the Drosophila with which the ...

It’s not just about chromosomes. Or reproductive cells. Or any other binary metric. Many genetic, environmental and developmental variations can produce what are thought of as masculine and feminine ...