title: Chimpanzees use stone hammers in Cameroon.
authors.affiliation: Conservation and Research for Endangered Species (CRES), Zoological Society of San Diego, 15600 San Pasqual Valley Road, Escondido, CA 92027-7000, USA. BMorgan@SanDiegoZoo.org
authors.forename: Bethan J
authors.initials: BJ
authors.lastname: Morgan
authors.forename: Ekwoge E
authors.initials: EE
authors.lastname: Abwe
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000502:physiology*; D002163:Cameroon; D003468:Cultural Evolution; D005843:Geography; D009048:Motor Skills / Q000502:physiology*; D019370:Observation; D002679:Pan troglodytes / Q000502:physiology*