More from Alison Motluk
Explore the latest news, articles and features
In the mood
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Humans
Fertility index
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Humans
The crying game
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Humans
How pornography turns women on too
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In the shade
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Waggle dance shows how much bees like pollen
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Clamp down
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Lost for words
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Jealous step-parents eject youngsters from the nest
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Petal power
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Cold turkey
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On the mend
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