Modern man, the only living species of a once numerous human family, is as definitely pigeonholed in the animal world by taxonomists (biological classifiers) as is Sylvilagus floridanus, the cottontail rabbit. The gun-shooting, crystal-gazing, ballot-casting speciescalled Homo sapiens by taxonomic courtesybelongs to the genus homo, the family of Hominidae, the order of primates, the class of mammals, the subphylum of vertebrates, the phylum of Chordata, and to the animal kingdom.
But taxonomy is always arbitrary because species, genera and families tend to merge into one another. So many "missing links" have been found...