Researchers have recorded and analysed the ways cows communicate with their young, to translate the meanings behind the "moos". They identified two distinctly different call sounds that cows make to their calves, depending on whether they are nearby or separated. They also identified a call calves make to their mothers when they want to start suckling milk. The cows were studied at a farm in Radcliffe-on-Trent, Nottinghamshire. The team from the University of Nottingham and Queen Mary University of London spent ten months digitally recording the cow sounds, then a year analysing them using computers. Dr Mónica Padilla de la...