Defensive use of a "fecal shield" by a beetle larva.
The larva of Cassida rubiginosa carries a tight packet of cast skins and feces on a fork held over its back. The packet is a maneuverable shield used by the larva to protect itself against attack. It is highly effective in blocking the bite of ants.
D000220:Adaptation, Biological; D000818:Animals; D001522:Behavior, Animal; D001517:Coleoptera / Q000502:physiology*; D005243:Feces