Thomas Point State Park, Maryland
Woodlice, or "roly-polies," are found today worldwide. Woodlice populations in the Americas arrived from Europe by sea alongside humans. They feed on dead plants, fungi, algae, and decaying animals. They also have predators such as: frogs, birds, insects, centipedes, and spiders. Woodlice are important to the ecosystems because they help quicken the process of decaying dead organism to decompose and are a major food source for many living organisms.
Sow bugs are found in just about every moist habitat such as under rocks and logs. Sow bugs feed on dead plants, fungi, algae, and decaying animals. They are hunted by birds, frogs, insects, centipedes, and spiders. Sow bugs are important to ecosystems because they help the process of decaying dead organisms, and are a food source for many organisms.
Armadillidiidae is a family of woodlice, a terrestrial crustacean group in the order Isopoda. Unlike members of other woodlouse families, members of this family can roll into a ball, an ability they share with the outwardly similar but unrelated pill millipedes and other animals. It is this ability which gives woodlice in this family their common name of pill bugs or roly polies. The best known species in the family is Armadillidium vulgare, the common pill...