Artists Enlist Caddisfly Larvae to “Build” Aquatic Cocoons from Gold Gemstones and Pearls

Artists Enlist Caddisfly Larvae to “Build”Jewelry From Gold, Gemstones Humans aren’t the only animals with yen for self-decoration. Caddisfly larvae protect themselves by constructing elaborate armors from gravel, sand, twigs, and other debris, which they “glue” together using excreted silk. The tiny moth-like insects scavenge whatever material is suitable from their environments, including anything you …