Animal - Wikipedia
https://en.wikipedia.org/wiki/Animal
OverviewEtymologyCharacteristicsEcologyDiversityEvolutionary originPhylogenyHistory of classificationAnimals are multicellular, eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and grow from a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in len…
DA: 27 PA: 47 MOZ Rank: 25