Kingdom Animalia

Internet definition

Animals are multicellular, eukaryotic organisms of the kingdom Animalia (also called Metazoa). All animals are motile, meaning they can move spontaneously and independently, at some point in their lives.

Our definition

To put it simply, the kingdom Animalia is where all animals are multicellular and have a more complicated cells (eukaryotic). They also have a nucleus and are able to move independently. They are able to develop as time goes on and have to ingest other organisms in order to survive. Animals under the Animalia classification are classified further into 36 phylums. The main 9 phyla are: Mollusca, Porifera, Cnidaria, Platyhelminthes, Nematoda, Annelida, Arthropoda, Echinodermata and Chordata. Each animal has different characteristics. For example a tiger, part of the Chordata family, has a tail or chord, whereas a flatworm, part of the Platyhelminthes phylum, is able to form new heads and tails when they're split in half. Each animal falls into the prey or predator category due to how they've adapted to the environment.