Thursday, July 24, 2014

Assignment Part 2 - The Mysterious Shells

When we discovered the colorful shells on a flat large rock, at first it was not quite so obvious what they were.  After some more exploring we learned that they were in fact either Brown Lipped Grove Snails (Cepaea nemoralis) and/or White Lipped Land Snails (Cepaea hortensis), which are close relatives of the Brown Lipped Grove Snails. 

After much consideration, which included ignoring the fact that it was in fact  and research I found out that the shells, which were broken when found on the rock, got there from one of their largest predators, the Song Thrush.  The Song Thrush will use a flat rock, also known as a Thrush Anvil, to smash the snails onto the rocks in order to break the shell and eat the snails.

I used a source from University of Michigan for my research.

No comments: