EcologyBowhead WhaleEcosystemPhylogenySequence Analysis, DNAEcological and Environmental PhenomenaBiodiversityBiological EvolutionPopulation DynamicsFood ChainEcological and Environmental ProcessesBirdsGeographyBiotaFeeding BehaviorConservation of Natural ResourcesPopulation DensityPredatory BehaviorBacteriaAnimal MigrationSpecies SpecificitySeasons