Phylogenese; Biolinguistics ; Phylogenetic development of cognition; Language and thought (phylogenesis) ; Tiersprache; Animal communication; Vogelgesang; Birdsong; Zoosemiotics ; Symbolismus (Kognitionsforschung) ; Symbolism (cognitive science) ; Evolution (theory of) ; Theory of evolution ; Neurolinguistics ; Kulturvergleich; Language and culture ; Sociology of translation; Language and social studies ; Mental representation (language acquisition) ; Object individuation; Conceptual development; Konzept (Spracherwerb) ; Concept formation ; Spracherwerb und neurologische Entwicklung; Language acquisition and neurological development; Sprache und Denken (Ontogenese) ; Language and thought (ontogenesis) ; Cognitive development; Language acquisition and cognitive development ; Sprachlernfähigkeit; Sprachfähigkeit; Chimpanzee (linguistic ability) ; Schimpanse (Sprachlernfähigkeit) ; Language aptitude; Spracheignung