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Environment

Desirable daisies lure male flies with offer of sex

Orchids aren't the only love cheats 鈥� daisies, too, get male insects to spread pollen by mimicking female flies

Humans

Birds use optical illusions to get mates

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Smoking, bad for your fertility and your child’s

Humans

Zoologger: Shrimp plays chicken with its sex change

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Die young, live fast: The evolution of an underclass

Humans

Fireflies’ flashy mates have to be in sync

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Debate over gender disorder drug

Humans

Why men are attracted to women with small feet

Humans

Curious liaisons: Nature’s weirdest sex lives

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Ovulation gives women’s brains a boost

Brain areas involved in facial recognition and navigation vary in size during the menstrual cycle, growing bigger in the run-up to ovulation

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Bumpology: Choosing the sex of your child

Humans

Children of lesbian parents do better than their peers

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Later menopause for women with polycystic ovaries

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Cancer guardian found playing a role in sex