Human reproduction requires both male and female gametes. Gametes are special sex cells that contain the genetic information necessary to create a new life. Men produce millions of gametes called ...
The male genital system consists of both external and internal parts. The external male genitalia include the penis, urethra, and scrotum. The internal male genitalia include the seminal vesicle, ...
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 ...
In 2016, two Japanese reproductive biologists, Katsuhiko Hayashi and Mitinori Saitou, made an announcement in the journal Nature that read like a science-fiction novel. The researchers had taken skin ...
"If reproduction is ever to occur beyond Earth, it must do so with a clear commitment to safety, transparency and ethical integrity." ...
(Paris, France, Monday, 30 June 2025) A new international study presented today at the 41 st Annual Meeting of the European Society of Human Reproduction and Embryology (ESHRE) reveals that IVF cycles ...
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