Started a tray of pansies from seed which were doing nicely under the lights in my basement - all about an inch tall with 2 pairs of leaves. This morning I go down there and something has eaten all of them. All that was left were a couple leaves scattered around and some bare stems sticking up out of the dirt. The rest of my seedlings are going down there this weekend so I need to identify the pest and get rid of it!!! What do you think it was? A mouse? An insect? ???