* Share the same basic shape: Both have a distinct body shape with a beak, wings, and a tail.
* Represent the concept of a duck: They both visually evoke the image of a duck, even though one is a living creature and the other is an inanimate object.
However, there are many differences, as a real duck is alive, can swim, fly, quack, etc., while a paper duck is just a representation made of paper and has no such abilities.