Children are exposed to anthropomorphized animals in a variety of contexts. The literature that analyzes this phenomenon suggests that exposure to anthropomorphic media may strengthen children’s anthropocentric representation of animals. There is an as yet unexplored difference between anthropomorphized and realistic depictions of multiple animal species presented simultaneously in films. The anthropomorphized animals all behave like humans, so they are more behaviorally similar to one another than animals depicted realistically. We asked whether witnessing multiple species depicted anthropomorphically or realistically influences the way 5-year-old children perceive internal commonalities among animals. One group of children (n = 37) watched a cartoon presenting multiple species of anthropomorphized animals, the other group (n = 38) watched a nature documentary that also presented multiple species. Both groups extended a novel internal feature from an animal to a variety of items including diverse animal species. Children watching a cartoon made significantly stronger projections to non-human animals than children watching the documentary. Children’s projections to humans and inanimate objects did not differ between the groups and were uniformly low. One of the possible explanations of the results is in terms of children’s essentialist expectation that behavior is caused by internal properties.