Some caddisflies protect themselves from predators by building portable cases out of local materials - such as pebbles, sand, and aquatic plants - that are cemented together with silk or mucus.

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References

"There are a number of invertebrates (animals without backbones) that construct cases for themselves from materials abundant in their environments, like sand, pebbles, shells, and plant materials. These bits and pieces are cemented together with silky or mucous secretions from the creature. Caddis flies and sabellid or honeycomb tubeworms are two common examples. Whereas caddis flies appear to randomly select objects of varying sizes, honeycomb tubeworms select particles of uniformly small size for the primary layer of their tubes." (Biomimicry Guild unpublished report) Edit References

Living System/s

Organism
Yellow-striped MacrotonaTrichoptera

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