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History Linguistics Psycholinguistics

The “Wug” Test: How a Fake Bird Revealed the Secrets of Child Language Acquisition

Estimated read time 5 min read

In 1958, a fictional bird called a “wug” helped solve one of the biggest mysteries of the human mind: how children learn language. The groundbreaking “Wug Test” revealed that kids aren’t just mimicking their parents; they are unconsciously deciphering the complex grammatical code of their native tongue. This simple experiment proved that an innate capacity for language is woven into our very biology.