Category:Bilaterians: Difference between revisions
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Animals with bilateral symmetry as an embryo, i.e. having a left and a right side that are mirror images of each other. This also means they have a head and a tail (anterior-posterior axis) as well as a belly and a back (ventral-dorsal axis).<ref name=Brusca2016>Richard C.,
Invertebrates, Sinauer Associates, ISBN 978-1-60535-375-3, Pages: 345–372,</ref>