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Are your obsessions normal?

Life

Are your obsessions normal?

Men may not think about sex every 7 seconds, but it still occupies minds several times a day. As do other pleasures in life – but when do they become obsessive?

Features

Bumblebees cope with climate change by evolving shorter tongues

Earth

Bumblebees cope with climate change by evolving shorter tongues

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Last Word

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Environment

Rose nose

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Last Word

Lumber's up

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A queen conch, with a bluish exterior to its shell, and the interior curving out in a rich orangey colour. Two eyes on black and white stalks peep out

Earth

Endangered alien-like conch could be saved by stomach guest

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Gene editing: Bring it on

Life

Gene editing: Bring it on

Opinion

Zoologger: Octopus makes own quicksand to build burrow on seabed

Life

Zoologger: Octopus makes own quicksand to build burrow on seabed

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Earth

Palm oil: How this eco villain is mending its ways

Comment

Living fossil nautilus re-emerges after 30 years of hiding

Life

Living fossil nautilus re-emerges after 30 years of hiding

Almost three decades had passed since the last sighting of Allonautilus scrobiculatus when this creature swam in front of Peter Ward's camera last month

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Life

Secret to old-age health could lie in purging worn-out cells

Features

Life

Why did sex evolve? Blame an ancient hook-up

Opinion

Earth

Avant-garde fly wearing beads of dew wins photography prize

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Earth

Myriad moths reveal odd shapes and hypnotising patterns

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