InvertebratesVertebratesMolluscaEchinodermataCrustaceaUrochordataChordata, NonvertebrateAquatic OrganismsMolecular Sequence DataPolychaetaPhylogenyBivalviaAnnelidaArthropodsCnidariaAmino Acid SequenceCiona intestinalisPhotoreceptor Cells, InvertebrateGastropodaGanglia, InvertebrateEvolution, MolecularInsectsMarine BiologyBiological EvolutionSea CucumbersDrosophila melanogasterLymnaeaAmphipodaOligochaetaHemocytesEcosystemLarvaFood ChainSpecies SpecificityInvertebrate HormonesCaenorhabditis elegansChordataSequence Homology, Amino AcidPoriferaCephalopodaDrosophila ProteinsBrachyuraDrosophilaBryozoaSequence AlignmentMytilusDaphniaSnailsFishesAstacoideaBase SequenceHorseshoe CrabsThoracicaLeechesOceans and SeasBiodiversityRotiferaOctopamineNephropidaePlatyhelminthsHemolymphAnthozoaIsopodaBiomphalariaSea UrchinsDecapoda (Crustacea)HydrozoaConserved SequenceBeesIridovirusInsect ProteinsCloning, MolecularEmbryo, NonmammalianSeawaterLoligoReceptors, Biogenic AmineGene Expression Regulation, DevelopmentalCrassostreaBeetlesCaenorhabditis elegans ProteinsDNA, ComplementaryGrasshoppersAnimal RightsPectinidaeDecapodiformesReceptors, Invertebrate PeptidePenaeidaeCoral ReefsPredatory BehaviorHelix (Snails)CockroachesMultigene FamilyMammalsHepatopancreasPopulation DynamicsStarfishModels, BiologicalNematodaSymbiosisFeeding Behavior