All Creatures Great and Small

Now that there is warmer weather, the boys would like our house to become the local zoo for any and all wildlife that they find. The boys bedroom has now become home to two baby bluegills, which they have to change the water for everyday - we'll see how long that lasts. A couple of days ago they wanted to add a toad to their bedroom collection (I said no). Then on Saturday, I came home from a nice lunch with friends only to be greeted by a garter snake. Now yesterday, they found a crayfish and wanted to keep it!!!! Help me!!!!