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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

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Shadows of 3 adults with a child

Health

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

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Exclusive: World鈥檚 first baby born with new 鈥3 parent鈥 technique

Health

Exclusive: World鈥檚 first baby born with new 鈥3 parent鈥 technique

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Here's why

Health

Here's why "two-dad" babies aren鈥檛 yet a biological reality

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A group of swimming sperm

Health

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

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Slow-to-breed elephant hurtles towards extinction

Life

Slow-to-breed elephant hurtles towards extinction

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Sperm

Health

Semen reshapes immune system to boost chances of pregnancy

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Petri dishes containing unfertilised human eggs

Health

Babies鈥 health could be affected by variation in IVF nutrients

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two zebra finches

Life

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

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sperm on egg

Health

Male infertility cure will be gateway to editing our kids鈥 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

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Life

Doing it froggy style: Kermit Sutra鈥檚 seventh position revealed

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Life

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

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Life

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

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