human reproduction

With human research trials resulting in dozens of successful deliveries in the US and abroad, doctors move toward offering the surgery clinically, while working to learn all they can about uterine and transplant biology from the still-rare procedure.

CRISPR and other innovations are likely to open up a wealth of new options for how people have children.

A long-term study finds that these rhythms align at certain times of women’s lives, shedding new light on the controversial idea that lunar phases influence human reproduction.

In human male-female pairs with a less similar suite of genes for human leukocyte antigens, sperm fare better when exposed to cervical mucus.

The US Senate is reviewing a bill that would extend a ban on so-called three-parent embryos.

The US regulatory agency will meet next week to discuss whether to allow human trials of a technique that combines the genetic information of three adults.

A new genetic analysis suggests the human X chromosome evolves rapidly and plays a specialized role in sperm production.

Women may be able to store viable sperm for longer than a week, thus contributing to apparent variability in pregnancy lengths.

In Chapter 3, “From Mating to Conception,” author Robert Martin explores the question of why humans and other primates frequently engage in sexual intercourse when females are not fertile.