<P> Giant armadillos typically weigh around 18.7--32.5 kg (41--72 lb) when fully grown, however a 54 kg (119 lb) specimen has been weighed in the wild and captive specimens have been weighed up to 80 kg (180 lb). The typical length of the species is 75--100 cm (30--39 in), with the tail adding another 50 cm (20 in). </P> <P> Giant armadillos are found throughout much of northern South America east of the Andes, except for eastern Brazil and Paraguay . In the south, they reach the northernmost provinces of Argentina, including Salta, Formosa, Chaco, and Santiago del Estero . There are no recognised geographic subspecies . They primarily inhabit open habitats, with cerrado grasslands covering about 25% of their range, but they can also be found in lowland forests . </P> <P> Giant armadillos are solitary and nocturnal, spending the day in burrows . They also burrow to escape predators, being unable to completely roll into a protective ball . Compared with those of other armadillos, their burrows are unusually large, with entrances averaging 43 cm (17 in) wide, and typically opening to the west . </P> <P> Giant armadillos use their large front claws to dig for prey and rip open termite mounds . The diet is mainly composed of termites, although ants, worms, spiders and other invertebrates are also eaten . Little is currently known about this species' reproductive biology, and no juveniles have ever been discovered in the field . The average sleep time of a captive giant armadillo is said to be 18.1 hours . </P>

What is a group of giant armadillos called