Julie Sedivy êcrit Leave Los Niños Alone! The Mental Costs of Linguistic Assimilation:

When asked to draw a picture of a flower that does not exist, monolingual children were fairly unadventurous, drawing perhaps a flower that was missing its leaves, or a flower with only one petal. Bilingual children, on the other hand, incorporated elements from completely different objects—producing for instance, a flower with a tail, or a flower with teeth. This kind of cross-category mixing in children’s drawings tends not to occur until kids are about eight years old, putting the bilingual kids on an accelerated timeline for this particular skill.