title: Thumbs, tools, and early humans.
authors.forename: W C
authors.initials: WC
authors.lastname: McGrew
mesh_terms: D000818:Animals; D001696:Biomechanical Phenomena; D005580:Fossils; D049690:History, Ancient; D015186:Hominidae / Q000033:anatomy & histology*; D006801:Humans; D009048:Motor Skills; D013933:Thumb / Q000033:anatomy & histology*