Things that make you go Hmmm

Ok, not really, but it's kinda interesting.  We have a group of shells in our garden. 

Every once in a while a critter will take a shell and drop it somewhere else in our yard.  Another spot in the garden, or next to a tree.    Kinda cute kinda strange.  I guess they think it might be some kind of food, or they still have a good stinky smell to them....