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Humans

Humanity’s forgotten return to Africa revealed in DNA

Our species spread across the world from its African heartland about 60,000 years ago 鈥� but 3000 years ago, some humans went back to the homeland

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Stem cell timeline: The history of a medical sensation

Humans

Neanderthal-human sex bred light skins and infertility

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Black Death may have scuppered Roman Empire

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Ancient European hunter-gatherer was a blue-eyed boy

Environment

Infectious cancer preserves dog genes for 11,000 years

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H. flu fighter: Targeting a key bug in lung disease

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Right on target: New era of fast genetic engineering

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Giant leaps of evolution make cancer cells deadly

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Cheap DNA: What the $1000-genome means for you

The long-awaited price breakthrough could help decode the causes of diabetes and schizophrenia, but don't rush out for a spit test yet

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Gene therapy restores sight in people with eye disease

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Preparing students to meet their genes in the classroom

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Synthetic gene helps HIV vaccine hit shape-shifting foe

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Testing times for the consumer genetics revolution