I take issue with this subtitle of the article. Humans are animals. This false dichotomy between Homo Sapiens and "animals" has been foisted upon us by religious and homo-centric ideology. We need to embrace Darwinian evolution and our biological roots, we are a branch on the tree of organisms. We should be surprised that "other" animals may have aspects of culture;of course they do, as do macaques, wolves, chimpanzees, crows, eusocial insects, singing birds, anything that lives in colonies, etc.