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Bilateria facts for kids

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Bilateria
Temporal range: Ediacaran – Recent
Animal diversity October 2007.jpg
Diversity of bilaterians.
Scientific classification
Kingdom:
Subkingdom:
(unranked):
Bilateria

Hatschek, 1888

The Bilateria are animals which are bilaterally symmetrical. They have front and a back end, an upside and downside, and a left and right side. Most animals are bilateral.

Main subgroups

Numbers are approximate; extinct species numbers cannot be known for most phyla.

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