Female crickets prefer the serenades of younger males. New Scientist reports: The findings defy a well-established theory that females prefer older males because their longevity shows they have good genes. This idea was largely unproven, says Luke Verburgt of the University of Pretoria, South Africa. And once he put it to the test using field [...]

New Scientist reports: Call them the urban new breed. We know birds raise their voices to make themselves heard in the noisy big city, but for the first time there is evidence that they may even be evolving as a result of city living. “Urban birds might be becoming genetically distinct, which is the first [...]