Charmantier, Anne First evidence for heritable variation in cooperative breeding behaviour. [electronic resource] - Proceedings. Biological sciences Jul 2007 - 1757-61 p. digital Publication Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't ISSN: 0962-8452 Standard No.: 10.1098/rspb.2007.0012 doi Subjects--Topical Terms: AnimalsBiological EvolutionCooperative BehaviorHelping BehaviorLongevityNesting Behavior--physiologyOregonPasseriformes--geneticsPedigreeSexual Behavior, Animal--physiology