![crayfish-1184](http://MontessoriMuddle.org/wp-content/uploads/2012/05/crayfish-1184-490x367.jpg)
One of my favorite things about the Fulton School campus is the little creek that runs along the boundary. It’s small, dynamic, and teeming with life.
The crayfish are out in force at the moment. Some of the high-schoolers collected one last fall and it survived the winter in our fish tank (also populated with fish from the creek).
They are quite fascinating to observe; wandering around the sandy bed as if they own the place; aggressive with their pincers occasionally; but then darting backward amazingly fast if they feel threatened.
The one in our tank has just molted a second time, so now we have two almost perfect exoskeletons sitting around the science lab.
![crayfish-1233](http://MontessoriMuddle.org/wp-content/uploads/2012/05/crayfish-1233-490x298.jpg)