What invertebrates make the best classroom pets? How should we care for each invertebrate? What type of inquiry activities could invertebrates support? How do elementary students respond to invertebrates? These were the questions investigated in The Critter Project, a three-week project that aimed to help students conquer their "critter jitters" while developing inquiry skills. This project was conducted with preservice students, but the questions and investigations are appropriate for elementary students as well. (Contains 1 figure, 4 resources and 7 online resources.)