The Snail, like the Slug, is a Gastropod Mollusc. They are characterised by the presence of a protective shell, large enough to retereat into. There are many different species of Snails, some not particularly closely related. They can be found in a wide range of habitats: from the oceanic depths, to freshwater ponds, and in almost every terrestrial environment. Many species of terrestrial Snails, like this common garden snail, favour a vegetarian diet, and can be quite destructive on crops and gardens. Others - such as the Rosy Snail - are carnivorous. The Snail's shell is made from calcium, and they are not infrequently found on the sides of houses, where they graze on the stucco. This is not too much of a problem with the regular garden snail, which is fairly small, but the African giant snail - the size of a mouse - can cause damage.
Other species of snails:
Oahu Tree Snail: Critically endangered, predated on by Rosy Snail.
Dlinzi Pinwheel: Critically endangered, habitat destruction.
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