title: One of the main forces that advance all fields of scientific inquiry is the establishment of unifying principles.
authors.forename: Volker
authors.initials: V
authors.lastname: Hartenstein
authors.forename: Diethard
authors.initials: D
authors.lastname: Tautz
mesh_terms: D000818:Animals; D015509:Developmental Biology; D019143:Evolution, Molecular; D018507:Gene Expression Regulation, Developmental; D006801:Humans