Better cochlear implants may emerge from close study of the way that bats and dolphins use sound to sense their surroundings. This article is from the BBC News website. © British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites. View full...

Young people aged 11 to 15 in London drink and smoke substantially less than some of their contemporaries in the north of England, NHS data shows. Those in the North East reported the highest levels of both drinking and regular smoking in surveys carried out over the past three years. But...