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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 ).
While commonly referred to as "rat poison", rodenticides are also used to kill mice, woodchucks, chipmunks, porcupines, nutria, beavers, [1] and voles. [2] Despite the crucial roles that rodents play in nature, there are times when they need to be controlled. [3] [opinion] Some rodenticides are lethal after one exposure while others require ...
Porcupine Mountains State Park was established in 1945 to protect the area's large stand of old-growth forest, much of it of the "maple-hemlock" type. In 1972, Michigan passed the Wilderness and Natural Areas Act. This act gave the park the new designation of the Porcupine Mountains Wilderness State Park.
"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 ...
Most porcupines are about 60–90 cm (25–36 in) long, with a 20–25 cm (8–10 in) long tail. Weighing 5–16 kg (12–35 lb), they are rounded, large, and slow, and use an aposematic strategy of defence. Porcupines' colouration consists of various shades of brown, grey and white.
Erethizon is a genus of New World porcupine and the only one of its family to be found north of southern Mexico.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]
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The crested porcupine is a terrestrial mammal; it very seldom climbs trees, but can swim. It is nocturnal and monogamous. The crested porcupine takes care of the young for an extended period, and small family groups consist of the adult pair and young of various ages.