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Life
Our ancestors speak out after 3 million years
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Earth
Oil and gas wells find new life with geothermal
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Microscopic scales weigh up cancer therapies
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A shot of snake blood makes the heart grow
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Anti-fatigue drug helps tired doctors 鈥� good idea?
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Earth
Wind turbine blades reach out to catch the breeze
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Physics
Artificial crystals get their own textbook laws
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Sickle cell disease cured by gene knock-out
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Organ donors should get free funeral
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Earth
Ancient cave paintings threatened by tourist plans
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