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/ 11 September 2007

No fertile land means no food

Climate change and an increasing population could trigger a global food crisis in the next half century as countries struggle for fertile land to grow crops and rear animals, scientists warned recently. To keep up with the growth in human population, more food will have to be produced worldwide over the next 50 years than has been during the past 10 000 years combined, the experts said.

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/ 7 November 2005

Why male mice feel urge to sing

They might not huddle round a marvellous mechanical mouse organ or live with a cartoon character cat called Bagpuss, but scientists have discovered that mice are more musical than their simple squeaks suggest. Research by a team of neuroscientists has revealed that male mice construct complex songs and sing them for minutes at a time when they come across sex pheromones produced by potential mates.