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Gay couple adopted baby girl and enjoying the parenthood

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How might society react to babies with two genetic fathers?

Mice created using genetic material from two sperm cells have gone on to have offspring off their own, but the prospect of one day using the technique in humans has potential to cause controversy

Leader

Adult male mice that have two fathers and went on to have offspring of their own

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Mice with two fathers have their own offspring for the first time

News

What a medical professional sees when they oversee the procedure via a livestream

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World's first baby born by IVF done almost entirely by a machine

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Father's gut microbiome may affect infant health

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Relatives of men with fertility issues may be at higher risk of cancer

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Blasting sluggish sperm with ultrasound waves gets them moving

News

Illustration of sperm cells swimming. There is a worldwide decline in sperm counts, but we now have a better idea about how to fix the problem

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Sperm counts are down worldwide and researchers are discovering why

Features

Scientists studied bull sperm, which have similar structures and swimming patterns to human sperm

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Sperm sense what they are swimming through and adapt their behaviour

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Life

Most mammals go through the menopause - if they live long enough

News

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Morning-after pill is more effective when taken with anti-inflammatory

The emergency contraceptive levonorgestrel is much more effective at preventing pregnancy if the anti-inflammatory drug piroxicam is taken at the same time

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Gene variant that raises Alzheimer's risk may boost fertility in women

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Life

One-off injection may provide lifetime contraception for female cats

News

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

News

Life

Naked mole rats reveal biological secrets of lifelong fertility

News