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reproduction

ICSI being used to inject sperm into an egg

Health

Male fertility treatment seems to pass infertility on to sons

A study of some of the first children conceived using the ICSI technique suggests that, as adults, they have lower sperm counts than boys conceived naturally

51

Shadows of 3 adults with a child

Health

Everything you wanted to know about '3-parent' babies

51

Exclusive: World’s first baby born with new “3 parent” technique

Health

Exclusive: World’s first baby born with new “3 parent” technique

51

Here's why

Health

Here's why "two-dad" babies aren’t yet a biological reality

51

A group of swimming sperm

Health

Human sperm grown in a lab for the first time, claims study

51

Slow-to-breed elephant hurtles towards extinction

Life

Slow-to-breed elephant hurtles towards extinction

51

Sperm

Health

Semen reshapes immune system to boost chances of pregnancy

51

Petri dishes containing unfertilised human eggs

Health

Babies’ health could be affected by variation in IVF nutrients

51

two zebra finches

Life

Birds sing to their unborn chicks to warn them about hot weather

51

sperm on egg

Health

Male infertility cure will be gateway to editing our kids’ genes

The first use of germline genetic engineering could be to treat infertility in men, paving the way for its wider use, says Michael Le Page

Analysis

Health

Zika virus prompts increase in unsafe abortions in Latin America

51

Life

Doing it froggy style: Kermit Sutra’s seventh position revealed

51

Life

Compare the meerkat: Animals size each other up in race to top

51

Life

Mass of spawning fish make a milky way on a coral reef

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