Babbling babies may be warming up for speech, say scientists

Squeals and growls tend to occur in groups, finds study of infants aged up to 13 months

It might sound like a stream of jolly nonsense, but the peculiar sounds babies produce could be an attempt to practise the vocal control necessary for speech, researchers have suggested.

A study analysing the sounds made by infants during their first year of life has found squeals and growls tend to occur in groups.