Discover Nature NotesMore posts

The Creature with a Mobile Home

Mar 19, 2018

It is a familiar creature that constantly moves but is always home.  It has a mouth on the bottom of its foot.  It has a foot but no leg.  The animal leaves a trail wherever it goes.  What is it?  It’s a snail, of course!
Snails are common and unusual.  Common, because we all recognize snails when we see them, and unusual, because, in spite of their familiarity, most people know little about them.  Snails are ancient creatures.  As a group, they’ve been so successful that very few habitats, on land, in water, or near it, lack snails.
Snail design is basic: a large muscular body, or foot, with attachments.  Everything is connected to the foot.  The head and antennae are in front, the tail is out behind, and the shell is on top.  The shell has a good deal to do with the success of snails.  Snails retract the muscular foot, along with all the other essential body parts, into the shell for protection.  Their shells give them cover against environmental extremes like heat and dryness, or from predators.
A snail moves slowly and won’t outrun a bird or shrew or hungry ground beetle.  But it can hide in its shell and make its soft, fleshy body as unavailable as possible. Material Sourced from former MDC biologist, Dennis Figg.

Snail Mail

  • Most freshwater snails graze on plant material, or sometimes, scavenge on dead animals.
  • It is common to see gilled pond snails gliding about on submerged rocks; each one is scraping algae from the surface using a minute mouthpart called a radula, often described as a “rasping tongue.”
  • If you collect pond water in a jar and place pond snails into it, you will soon be able to see these mouthparts as the snails attempt to forage on the glass.
  • Aquatic snails play an intermediate role in aquatic food chains, eating plants and then becoming food for something larger. Several types of fishes have specialized throat teeth for cracking snail shells. Some birds and other animals eat snails, too.

For more about snails, visit the MDC’s Field Guide.

 

MO DOC-2018-DNN Mar Wk 4 Snails-MODC1803-LF04.mp3

Discover Nature Notes Radio
The Creature with a Mobile Home

Snail Hits Predator with Its Shell | National Geographic

Watch snails defend theirselves in this National Geographic Video
Watch snails defend theirselves in this National Geographic Video

land snail - 6.jpg

Land Snail
Land Snail

sharp_hornsnail_8-10-15.jpg

Sharp Hornsnail
Sharp Hornsnail

Recent Posts

Black Bears

Be Bear Aware

Apr 23, 2018

BE BEAR AWARE:  Black bears have been making a comeback in Missouri's southern forests.  Get to know the black bear, how to identify their tracks, watch them in the wild, and learn how you can be bear aware in Missouri in this week's Discover Nature Note. 

Black Swallowtail Butterfly

Butterfly Gardening

Apr 16, 2018

DISCOVER NATURE NOTES:  Want to bring butterflies to your backyard?  Planting native plants will help feed our native, hungry flyers.  Planting the right greenery to feed their hungry, hungry caterpillars is an easy way to bring them in.  Native plants help native species and will make any garden pop with color throughout the season.  Learn tips to attract butterflies and watch a video on native gardening in this week's Discover Nature Note.

 

 

Champion Bald Cypress Tree

50 Years of Champion Trees

Apr 09, 2018

Everyone likes to root for a champion.  And when that champion is rooted in the ground, it’s an award-winning affair.  For 50 years, Missouri has registered champion trees with state records in over 100 species around the state.  A record tree is decided on a point system that includes height, crown, spread, and trunk size.  The largest tree on record is a bald cypress tree in southeast Missouri. Trees are the largest and oldest living organisms and often mark milestones in our lives and communities.  Learn more about champion trees, how you can view and nominate them, and watch a video of a special champion with its own Facebook page and caretaker family in this week's Discover Nature Note.

Archive

Field Guide

Discovering nature from A-Z is one click away

Recipes

You had fun hunting, catching or gathering your quarry—now have more fun cooking and eating it.
Check out the recipes