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sex

Thank bees for orchids' diversity

Life

Thank bees for orchids' diversity

Orchids owe their enormous variety to the bees and other insects that pollinate them

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Transsexual differences caught on brain scan

Life

Transsexual differences caught on brain scan

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Polygamy boosts mouse sperm fitness

Earth

Polygamy boosts mouse sperm fitness

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Female crickets fall for serenades of younger males

Earth

Female crickets fall for serenades of younger males

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The scent of a woman's tears wards off men

Life

The scent of a woman's tears wards off men

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Why incest among animals cuts male sexual aggression

Earth

Why incest among animals cuts male sexual aggression

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Evolutionary sex wars continue despite peace treaties

Life

Evolutionary sex wars continue despite peace treaties

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Structure of egg 'glue' may bring new contraceptives

Life

Structure of egg 'glue' may bring new contraceptives

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Being in love eases the pain

Life

Being in love eases the pain

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Men beware: moving country could affect your libido

Life

Men beware: moving country could affect your libido

Levels of hormones that influence sexual arousal and disease susceptibility are in part determined by where men live

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Life

Zoologger: The heaviest animal in the air

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Life

Desirable daisies lure male flies with offer of sex

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Life

Birds use optical illusions to get mates

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Health

Smoking, bad for your fertility and your child's

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