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Image caption The scientists are trying to get chemicals to stop the fast movement. of sperm. In a laboratory in Dundee, two huge robotic arms test thousands of chemical compounds looking for a drug to stop sperm in its tracks. "Sperm move very quickly in humans," says Prof Christopher Barratt, head of the Reproductive Medicine Group at the city's university. "It's the speed of Usain Bolt if you want to get an analogy. And what we're trying to do is get chemicals to stop that type of movement. So stop them in the starting blocks, rather than letting them get to the 100m line.". The team at the University of Dundee have begun work to develop a male contraceptive pill thanks to a $900,000 ( Full story

19 June