Face to face with a Roman lady in London

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A rare sarcophogus found in London dating back to the Roman occupation of Britain goes on show with the skeleton and reconcstructed head of its female occupant. Four rhesus monkeys have been successfully cloned from a single eight-celled embryo. What's underneath the Antarctic and how do scientists drill down to find out? Why is human blood the favourite food of the Aedes aegypti mosquito that carries dengue and yellow fever?