Do You Have Gastropods in Your Back Yard?

posted by gbowen
May 24, 2010

It’s ok if you do because snails (Gastropods)  are found in almost every habitat, be it damp land, fresh water, or sea water.  Snails are small, soft-bodied mollusk that crawls very slowly. Most snails have spiral shells on their backs into which they can pull back for protection. There are land snails, freshwater snails, and marine snails.

Did you know that a snail has only one foot? Or that it has no bones at all?

Snails move slowly making them easy to watch. Slow-moving snails are great for studying animal motion. If you find a snail in your garden and turn it over, you’ll see that it uses a large, muscular foot to crawl along.

There are two types of snails. Gilled snails have gills and can close their bodies into their shells with a plate, or door. Gilled snails usually lay their eggs in jelly-like cocoons above or under water. The trapdoor snail (actually a livebearer) and apple snail are two of these.

 Pulmonate snails have lungs. They either come to the surface to breathe, or some breathe through their body surface while underwater. They cannot close their bodies into their shells. Pulmonate snails usually lay their eggs in gelatinous masses under water (the Malaysian trumpet snail though is a live-bearer). Examples are pond snails and ramshorn snails.

This information was found on: http://www.abc-kid.com/snails/ and http://www.teacherwebshelf.com/classroompets/insectsandco-snails.htm.  See these websites for more interesting snail facts for kids.

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2 Responses to “Do You Have Gastropods in Your Back Yard?”

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