Hystricidae (Old World porcupines; order Rodentia, suborder Hystricomorpha) A family of mainly vegetarian, burrowing rodents in which some body hairs are modified to form spines. The body is thickset, the legs are short with five digits, the first digit of the fore limbs being reduced. The tail is long in some species and bears modified spines. Old World porcupines are slow-moving, relying for defence on their colouring and on the noise made by the movement of their spines. The hystricoid arrangement of the jaw muscles probably evolved independently in Old and New World porcupines (Erethizontidae), so these are not necessarily related closely. There are four genera, with about 16 species, distributed through Africa, Italy, and southern Asia.
More From encyclopedia.com
Old World Monkeys , Cercopithecidae (Old World monkeys; suborder Simiiformes, superfamily Cercopithecoidea) A family that, in some arrangements, comprises all existing O… Monkey , monkey, any of a large and varied group of mammals of the primate order. The term monkey includes all primates that do not belong to the categories h… Old World Warblers , Sylviidae (Old World warblers, cisticolas, prinias; class Aves, order Passeriformes) A family of small birds which have brown, grey, or greenish plum… Brine Shrimp , Anostraca (fairy shrimps, brine shrimps; subphylum Crustacea, class Branchiopoda) Order of mainly freshwater branchiopods lacking a carapace, and wit… Barn owls , Tytonidae (barn owls, bay owls; class Aves, order Strigiformes) A family of owls that have heart-shaped facial discs which meet above the bill in Tyt… Armadillo , armadillo armadillo (är´mədĬl´ō), New World armored mammal of the order Edentata, a group that also includes the sloth and the anteater, characterize…
About this article
Updated About encyclopedia.com content Print Article
You Might Also Like