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Life

One-off injection may provide lifetime contraception for female cats

The long-pursued goal of a permanent, one-dose contraceptive may have been achieved in female cats and it should work in other species too

News

A light micrograph of a sperm cell being injected into an egg via an intracytoplasmic sperm injection (ICSI)

Health

Test showing if sperm can puncture an egg may guide fertility therapy

News

Naked mole rat

Life

Naked mole rats reveal biological secrets of lifelong fertility

News

Human sperm

Health

Sperm-sorting device aims to find healthy samples to boost IVF success

News

Parents playing with a baby

Society

What happens when sperm and egg donors lose the right to anonymity?

News

Abdominal pain is a common endometriosis symptom

Health

Genetic map of cells linked to endometriosis could improve treatments

News

A synthetic mouse embryo (left) and a natural mouse embryo (right) show comparable brain and heart formation

Health

Synthetic reproductive cells will help us understand fertility in 2023

News

Large crowd

Humans

What will a population of 8 billion people mean for us and the planet?

Insight

Clusters of sperm

Life

Sperm move in packs like cyclists to push through thick vaginal fluid

News

Synthetic (left) and natural (right) embryos to show comparable brain and heart formation.

Health

Synthetic mouse embryos with rudimentary brain grown in the lab

Embryo-like structures grown in an incubator instead of a uterus could lead to better treatments for infertility and a range of other medical conditions

News

Health

Tiny bubbles in semen could contribute to ‘unexplained infertility’

News

Health

Infertility in some men may be caused by X chromosome mutations

News

Health

Why two-thirds of IVF embryos suddenly stop developing

News

Health

Rat testicle cells make sperm after being frozen for 23 years

News