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The original was posted on /r/todayilearned by /u/porcodiobestia on 2024-01-18 23:29:57+00:00.

Original Title: TIL the phrase "“if it looks like a duck, walks like a duck and quacks like a duck, then it’s a duck” originated from a mechanical duck made in the 18th century that would appear to eat, digest and expel food.