A new study has established that toddlers, even as they learn their native languages, are able to learn a second language right from the age of 20 months.
At that age the tots' minds are developed enough to learn basic language skills but are not sufficiently tuned in to one language ahead of another.
Researchers at Paris Descartes University suggested that 20 months is the age at which children in bilingual homes begin to become proficient in both tongues, reports The Daily Express.
All of the 24 youngsters came from homes where only French was spoken, said the team.
The instructions, such as telling them to put a ball in a cup, included words they had yet to learn in French as well as English.
The results, published in the journal Infant Behaviour and Development, showed the babies picking up the English as quickly as the French instructions.
Researchers said the study showed that "20-month-olds have developed mature word learning mechanisms".