sentence: Most species have venomous appendages on their sides.
sentences_before: Unlike most other gastropods they are 'bilaterally symmetrical'. They have undergone secondary detorsion. Uncoiling of the typical gastropod body shape, see garden snail.
sentences_after: These are used to deter predators. Many also have a simple gut and a mouth with a radula.
concept_name: specie
headings: Nudibranch Biology
categories: Gastropods