title: Life history evolution: what does a menopausal killer whale do?
abstract: Menopause evolved in humans and whales, presumably because older females can help their kin. But how do they help? New research shows that post-menopausal female killer whales lead foraging groups. This leadership is most significant when food is scarce.
authors.affiliation: Biology Department, Dalhousie University, 1355 Oxford St, Halifax, Nova Scotia, Canada B3H4J1. Electronic address: hwhitehe@dal.ca.
authors.forename: Hal
authors.initials: H
authors.lastname: Whitehead
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000502:physiology; D005075:Biological Evolution; D004032:Diet; D017753:Ecosystem; D005247:Feeding Behavior / Q000502:physiology; D005260:Female; D006801:Humans; D007858:Learning; D008593:Menopause / Q000502:physiology* / Q000523:psychology*; D008954:Models, Biological; D012919:Social Behavior; D050685:Whale, Killer / Q000502:physiology* / Q000523:psychology*