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fertility

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

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Health

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

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

Life

Naked mole rats reveal biological secrets of lifelong fertility

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Naked mole rat
Human sperm

Health

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

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Parents playing with a baby

Society

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

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Abdominal pain is a common endometriosis symptom

Health

Genetic map of cells linked to endometriosis could improve treatments

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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

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Large crowd

Humans

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

Insight

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Clusters of sperm

Life

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

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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

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

Health

Tiny bubbles in semen could contribute to ‘unexplained infertility’

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Health

Infertility in some men may be caused by X chromosome mutations

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Health

Why two-thirds of IVF embryos suddenly stop developing

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Health

Rat testicle cells make sperm after being frozen for 23 years

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