Pillbugs

Conglobation: To form into a round compact mass.

Pill bugs conglobate as a key defense against predation.

Pill bugs diet on decaying or decomposed plant matter as well as living plants and can be serious pests in some agricultural systems feeding on a variety of crop plants.

They also provide a food source for birds, toads, spiders, wasps, and centipedes.

Kingdom: Animalia
Phylum: Arthropoda
Class:  Malacostraca
Order: Isopoda
Family: Armadillidiidae