Mosquitos began biting humans more than a million years ago | An analysis of 38 modern mosquitoes’ DNA suggests an ancestral mosquito species developed a preference for feeding on early humans between 2.9 and 1.6 million years ago,

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"I guess it's bittersweet that I'm the first one, the first woman, to get it," she told BBC News.

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Head teacher Michael Polly, played by David Morissey, is the prime suspect in his wife's disappearance

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