title: Evolutionary biology: Survival of the fittest group.
authors.affiliation: Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA.
authors.forename: Timothy
authors.initials: T
authors.lastname: Linksvayer
mesh_terms: D000222:Adaptation, Physiological; D000374:Aggression / Q000502:physiology*; D000818:Animals; D005075:Biological Evolution; D005260:Female; D012641:Selection, Genetic; D013112:Spiders / Q000502:physiology*