Body SizeGroup StructurePopulation DensitySocial BehaviorHousing, AnimalTerritorialityPredatory BehaviorDolphinsBehavior, AnimalGroup ProcessesCompetitive BehaviorBiological EvolutionFloors and FloorcoveringsCooperative BehaviorLionsAnimal WelfareParasitesAnimal HusbandryAntelopesVasotocinSocial DominancePopulation DynamicsRuminantsFeeding BehaviorPrimatesGroomingNesting BehaviorMacropodidaeParasitic DiseasesAnimal CommunicationSongbirdsGame TheoryAggressionDictyosteliumReproductionSexual Behavior, AnimalVideotape RecordingEcosystemIndividualityWeaningSwineWeight GainModels, TheoreticalModels, BiologicalTime FactorsSex CharacteristicsSample SizeComputer SimulationBreedingSocial EnvironmentHost-Parasite InteractionsProtozoan ProteinsSpecies SpecificityAnalysis of VarianceRandom AllocationInsectsBody WeightPhylogenyReproducibility of Results