title: Animal cognition: know your enemy.
abstract: Food-storing corvids are able to remember which individual saw them store food, and take preventive action that is tailored to that particular competitor's knowledge. This raises the question of whether abilities like 'theory of mind' have arisen independently more than once in evolution.
authors.affiliation: Scottish Primate Research Group, and Centre for Social Learning and Cognitive Evolution, School of Psychology, University of St Andrews, Fife KY16 9JP, Scotland. rwb@st-andrews.ac.uk
authors.forename: Richard W
authors.initials: RW
authors.lastname: Byrne
mesh_terms: D000818:Animals; D005075:Biological Evolution; D003071:Cognition; D003163:Competitive Behavior; D005247:Feeding Behavior; D020308:Songbirds