The aim of this study was to investigate whether robot morphology (i.e., anthropomorphic, zoomorphic, or caricatured) influences children's perceptions of animacy, anthropomorphism, social presence, and perceived similarity. Based on a sample of 35 children aged seven to fourteen, we found that, depending on the robot's morphology, children's perceptions of anthropomorphism, social presence, and perceived similarity varied, with the anthropomorphic robot typically ranking higher than the zoomorphic robot. Our findings suggest that the morphology of social robots should be taken into account when planning, analyzing, and interpreting studies on child-robot interaction.