Life form – entity or being that is living or alive.
Animal – multicellular, eukaryotic organisms of the kingdom Animalia (also called Metazoa). Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their lives. Most animals are motile, meaning they can move spontaneously and independently.
Biological classification
Cladogram showing the most recent classification of Neoaves, based on several phylogenetic studies
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