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The North American porcupine (Erethizon dorsatum), also known as the Canadian porcupine, is a large quill-covered rodent in the New World porcupine family. It is the second largest rodent in North America after the North American beaver ( Castor canadensis ).
The Old World porcupines (Hystricidae) live in Italy, Asia (western [3] and southern), and most of Africa. They are large, terrestrial, and strictly nocturnal. The New World porcupines (Erethizontidae) are indigenous to North America and northern South America. They live in wooded areas and can climb trees, where some species spend their entire ...
They vary in size from the relatively small prehensile-tailed porcupines, which are around 30 cm (12 in) long, and weigh about 900 g (32 oz), to the much larger North American porcupine, which has a body length of 86 cm (34 in), and weighs up to 18 kg (40 lb).
New World porcupines (Order Rodentia, Family Erethizontidae) North American porcupine (Erethizon dorsatum) — uncommon in forested areas in the northern part of the state; usually found in mixed forests including eastern hemlock. [3] Porcupines are most common in northern Litchfield County, especially the towns of Hartland, Colebrook, and Norfolk.
"Unfortunately, the decline in porcupines is a bit of a mystery and we are hoping to start working on it soon within the FWP Nongame Program," explained Torrey Ritter, non-game Wildlife Biologist ...
The North American porcupine (Erethizon dorsatum) is the only extant species, but at least 4 extinct relatives are known, the oldest dating to the Late Pliocene. [2] Porcupines entered North America during the Great American Interchange after the Isthmus of Panama rose 3 million years ago. [ 3 ]
A total of 60 species are listed. Species currently extirpated in the state include the black bear, gray wolf, elk, American marten, cougar, fisher, porcupine, and bison. [1] The following tags are used to highlight each species' conservation status as assessed by the International Union for Conservation of Nature:
A bull elk grazes in Gibbon Meadows in the west-central portion of the park. An elk grazes with a bison in the park. There are at least 67 species of mammals known to live within Yellowstone National Park, a 2,219,791 acres (898,318 ha) [1] protected area in the Rocky Mountains of Wyoming, Montana, and Idaho.