title: Primate origins, human origins, and the end of higher taxa.
abstract: When people learn that I study human evolution and we start talking about it, they sometimes ask me, "How long ago did the first humans live?" My answer is usually another question: "What do you mean by 'humans'?" That response seems as baffling and wrong-headed to them as their question seems to me, and it usually takes us a while to straighten things out. © 2012 Wiley Periodicals, Inc.
authors.affiliation: Boston University, USA. cartmill@bu.edu
authors.forename: Matt
authors.initials: M
authors.lastname: Cartmill
mesh_terms: D000818:Animals; D000885:Anthropology, Physical; D005075:Biological Evolution; D005580:Fossils; D006801:Humans; D008322:Mammals / Q000033:anatomy & histology / Q000145:classification / Q000502:physiology; D010802:Phylogeny; D011323:Primates / Q000033:anatomy & histology / Q000145:classification / Q000502:physiology*; D012886:Skull / Q000033:anatomy & histology; D014070:Tooth / Q000033:anatomy & histology