Pastured grazing

A decayed Birch had given way and toppled into the water. I recovered what I could and a chainsaw worked the remainder. As I collected the shorts, I noticed that one bore the graze marks of a snail. Many gastropods use a toothed rasp to gather food. Grazing is highly ordered and elaborate patterns may accumulate on appropriate substrate. Look closely at any one of approximately fifty arcs of activity. More than a dozen feeding strokes are taken to the left, the animal moves forward, and as many strokes are then taken to the right. The behavior is reminiscent of what a cow might do on pasture … munch, munch, munch to the left, a step or two forward, and munch, munch, munch to the right.

9 thoughts on “Pastured grazing

  1. However I thought snails fed, this wasn’t it. It’s fascinating. But I have to ask – do you see the sitting, feathered bird, with its beak to the left and its tail to the right?

  2. This post is instructive! It belongs in a science textbook! I figured the feeding strokes looked too perfectly spaced to be made by any animal! Very interesting.

Respond to this post if you'd like.

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: