title: Reply to Fischer et al.
abstract: We welcome the correspondence from Fischer and colleagues regarding our recent paper on vocal learning in chimpanzee food grunts [1]. Fischer et al. make two challenges to our paper's conclusions, which we address here.
authors.affiliation: Department of Psychology and Neuroscience, University of St Andrews, St Andrews, Fife KY16 9JP, UK.
authors.forename: Stuart K
authors.initials: SK
authors.lastname: Watson
authors.affiliation: Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Switzerland; Department of Psychology, University of Warwick, Coventry CV4 7AL, UK.
authors.forename: Simon W
authors.initials: SW
authors.lastname: Townsend
authors.affiliation: Animal Ecology, Utrecht University, Utrecht, the Netherlands.
authors.forename: Anne M
authors.initials: AM
authors.lastname: Schel
authors.affiliation: Department of Psychology, University of York, York, North Yorkshire YO10 5DD, UK.
authors.forename: Claudia
authors.initials: C
authors.lastname: Wilke
authors.affiliation: Department of Psychology, University of York, York, North Yorkshire YO10 5DD, UK.
authors.forename: Emma K
authors.initials: EK
authors.lastname: Wallace
authors.affiliation: Department of Psychology, University of York, York, North Yorkshire YO10 5DD, UK.
authors.forename: Leveda
authors.initials: L
authors.lastname: Cheng
authors.affiliation: Centre for Behaviour and Evolution, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne NE2 4HH, UK.
authors.forename: Victoria
authors.initials: V
authors.lastname: West
authors.affiliation: Department of Psychology, University of York, York, North Yorkshire YO10 5DD, UK. Electronic address: katie.slocombe@york.ac.uk.
authors.forename: Katie E
authors.initials: KE
authors.lastname: Slocombe
mesh_terms: D000818:Animals; D005260:Female; D007858:Learning; D008297:Male; D002679:Pan troglodytes / Q000502:physiology*; D014828:Vocalization, Animal