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diet and exercise

worker's hand

Humans

Learning to be fair: Lessons from the deep past

While Thomas Piketty's bestseller fuelled a major rethink on economics and inequality, creating change is tough – and may depend on reimagining hunter-gatherer societies

Culture

weekly ART drugs

Health

Monthly injections could replace daily pills for people with HIV

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The great polar mystery: closing in on the truth

Earth

The great polar mystery: closing in on the truth

Culture

Oil rig

Earth

California climate case turns up the heat on fossil fuel giants

Comment

plastic bottles

Earth

Throwaway culture: The truth about recycling

Features

someone taking a blood test

Health

Prenatal test spots genetic anomalies linked to miscarriage

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blue whale skeleton suspended from the ceiling

Life

The day Hope the whale stole the show

Culture

Volvo XC90 SUV

Technology

Hailing e-Volvos as imminent saviours of the planet is nonsense

Comment

A bus being filled with biofuel

Earth

Use waste rather than crops for biofuels, says UK report

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fossil teeth

Humans

A mouthful of history: How teeth reveal our evolutionary past

Fossil incisors, canines, premolars and molars help pin down where we came from, but as Evolution's Bite shows, reading them is a tricky business

Culture

Life

Whales sneak into shallow water to eat salmon from hatcheries

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Physics

Mathematics has a bad hair day

Culture

Earth

Invisibility cloak makes solar panels work more efficiently

¿ìè¶ÌÊÓƵ

Space

Titan's conditions could be just right to power US-sized colony

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