title: Big horns clash with longevity in sheep.
authors: Ewen
authors: E
authors: Callaway
mesh_terms: D000818:Animals; D005260:Female; D005298:Fertility / Q000235:genetics / Q000502:physiology; D056084:Genetic Fitness / Q000235:genetics; D006579:Heterozygote; D006720:Homozygote; D006733:Horns / Q000033:anatomy & histology* / Q000254:growth & development / Q000378:metabolism; D006801:Humans; D008136:Longevity / Q000235:genetics / Q000502:physiology*; D008297:Male; D012098:Reproduction / Q000235:genetics / Q000502:physiology*; D012756:Sheep / Q000033:anatomy & histology* / Q000235:genetics / Q000502:physiology*