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Golden Apple snail in a freshwater aquarium.
A digital illustration of a golden snail shell on brown leaves
grape snail crawls on the ground
snail crawling on gravel path
Horizontal seashell photo low tide ambiance
A brown snail shell illuminated by the evening sun and photographed on a stone background with a macro lens, high resolution with copy space
Close up of a yellow snail on a rose branch
Grove snail, brown-lipped snail or Lemon snail (Cepaea nemoralis)
Snail
Shell Collection
little white snail on the green plant in the nature
Roman or Burgundy snail,  helix pomatia, close up.
Close up detail of a snail shell among the rocks of a forest between branches and leaves
common snail in lateral view
A snail on little stones
A snail makes its way across the outdoor tiles
See oyster
Land snail on the street close-up with focus on the lower right tentacle
A snail on a lichen rock. Blurred background.
Unknown Helicid garden snail (observed in Southern California) on a cement background
A beautiful view of a yellow cochlea on a wooden surface
Macro of Escargot shells on slate background.
Roman snail (Helix pomatia) climbing up a lamp standard
Small Brown Garden Snail
The gastropod species Hemicycla guamartemes, on forest floor at Gran Canaria.
Snail crossing the street
Snail of brown and black bands moving slowly on wooden railing with bottom of view to the sea.
Shell Collection:Colorful snail shell
Many species of gastropods have a more or less large outer shell: atrophied in slugs, it is large enough to shelter the whole animal in snails for example; it then constitutes protection against predators and drought. These shells, called univalves, have special features compared to the shells of other molluscs. They are optional or compulsory calcicole (limestone obtained in the plants on which they feed or by scraping the calcareous mineral substrates), more rarely calcifuge and in regions with non-calcareous soil can chew the shell of other individuals (case of parasitism), bone, eggshells. The shell is secreted by a thick fold of skin, called the mantle. It is mainly composed of calcium carbonate. Gastropods therefore need a diet rich in calcium.
Slug With Grass On Rainy Day
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