91色情片
Cheap IVF offers hope to childless millions
Doctors in Africa have found ways to slash the cost of IVF to a fraction of what it costs in the west, using stripped-down incubators and cheap generic drugs
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91色情片
Regular marijuana usage robs men of sexual highs
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Humans
Human sex from the inside out
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Humans
Why geeks get the girls
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Humans
It’s true: all the taken men are best
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Humans
‘Cuddle chemical’ may create green-eyed monster
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Humans
Fathers aren’t dispensable just yet
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IVF discounts beat cash rewards for research eggs
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Are lab-grown human sperm the real thing?
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Humans
Review: Sex in shades of grey
Science is undermining the notion that there are only two sexes and presenting a broad spectrum 鈥� from male to female and everything in between, says the author of Between XX and XY
Books & Arts
Humans
‘Hippy’ monkey is a killer when starved of sex
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Humans
Size doesn’t matter to some women
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Humans
Monkey ‘stock market’ prone to fluctuations too
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Humans
‘Worm porn’ video shows details of nematode sex
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