Plural of caddice; a type of yarn or ribbon, or the cases made by caddis fly larvae.
From 'caddice,' possibly related to 'cadge' or from an unknown origin. The term evolved to mean both a textile material and protective cases built by insects.
Caddis fly larvae are master builders—they construct portable homes from sand, pebbles, and plant material, and this behavior has fascinated scientists for centuries!
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