+**Animalia** is a major [Kingdom](/wiki/kingdom) of multicellular [Eukaryotes](/wiki/eukaryote), characterized by heterotrophy and, typically, mobility. This incredibly diverse group encompasses all animals, from microscopic worms to giant whales, united by their complex body organization and specialized tissues.
+## See also
+- [Life](/wiki/life)
+- [Vertebrates](/wiki/vertebtates)
+- [Invertebrates](/wiki/invertebrates)
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