MammalsSeals, EarlessMarsupialiaRodentiaDivingPhylogenyBiological EvolutionBirdsBody SizeSpecies SpecificityMolecular Sequence DataEvolution, MolecularEcosystemCircadian RhythmAmino Acid SequenceBase SequenceTime FactorsPinnipediaReptilesCetaceaShrewsInsectivoraFossilsVertebratesCarnivoraArtiodactylaEchidnaDolphinsMonotremataSequence AlignmentSequence Homology, Amino AcidExtinction, BiologicalMacropodidaeAnimals, WildSciuridaeOpossumsChiropteraHibernationDentitionGenomeConserved SequencePaleodontologyArvicolinaePrimatesFishesModels, Biological