This month all watershed explorers will be learning about freshwater macro invertebrates. A macro invertebrate is a small, but visible creature with no backbone. Some of the amazing invertebrates that explorers will be learning about this month are the dragonfly nymph, caddisfly larva, crayfish, snail and leech. Each explorer is a part of one of these five critter groups and will be working with their classmates to research, create and present a poster project on their respective critter. In class this month, explorers will have a chance to view some live freshwater macros and as a group we will discuss why it is important to study these amazing creatures. I have uploaded a video of a caddisfly larva emerging from its case onto the website for your enjoyment. The larva was found at Greystone Mill Pond in Johnston, RI.