Dr. Cara Shillington will introduce you to live spiders, tarantulas, scorpions and other intriguing invertebrates. Learn about poisonous spiders in Michigan, where they hang out, and how to avoid them. Cost: $2/person or $5/family. Gerald E. Eddy Discovery Center, 17030 Bush Rd. in the Waterloo Recreation Area near Chelsea. Please register in advance at 734-475-3170.