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July 2, 2012

NC Museum of Natural Sciences Education Blog

A visitor to the Micro World lab on Saturday asked a number of questions about our aquarium snails, including:

— what is the snail’s body like?

— when does its shell appear?

Here is a site with a great deal of information about aquatic snails – marine, brackish and freshwater varieties. The ones we have in our lab are freshwater varieties.  The site is from Olympus and has a couple of videos of aquatic snails along with a wealth of details on how each of the three types develops, how they are similar, and how they differ. For example, marine snails go through a free-swimming larval stage, whereas freshwater snails develop into their adult form right in the eggs and emerge, ready to go.

The site offers a good description of the snail’s body, including its strong muscular foot used to move around (including climbing, creeping, swimming and burrowing). As the foot…

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