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North American porcupines give birth to a single young, referred to as a porcupette. At birth, they weigh about 450 g, which increases to nearly 1 kg after the first two weeks. They do not gain full adult weight until the end of the second summer about 4.5 kg. Their quills harden soon after birth. Female porcupines provide all parental care.
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 ...
The prehensile-tailed porcupines or coendous (genus Coendou) are found in Central and South America. [2] Two other formerly recognized Neotropical tree porcupine genera, Echinoprocta [ 3 ] and Sphiggurus , [ 4 ] have been subsumed into Coendou , since Sphiggurus was shown by genetic studies to be polyphyletic , while Echinoprocta nested within ...
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.
The young weigh about 1,000 g (2.2 lb) at birth, which is about 5% of the mother's weight. They leave the den after one week. At this time, the spines begin to harden. Crested porcupines reach adult weight at one to two years and are often sexually mature just before then. [4] Breeding occurs throughout the year. [11]
Wild Animals of Yellowstone National Park. Yellowstone Library and Museum Association, Yellowstone National Park, National Park Service. Streubel, Donald P. (1995). Small Mammals of the Yellowstone Ecosystem. Boulder, CO: Robert Rineharts. ISBN 0-911797-59-9.
Their teeth are similar to those of Old World porcupines, with the dental formula 1.0.1.3 1.0.1.3. Solitary offspring (or, rarely, twins) are born after a gestation period of up to 210 days, depending on the species. The young are born fully developed, with open eyes, and are able to climb trees within a few days of birth. [1]
Long-tailed porcupines’ appearances are somewhat rat-like. [4] [5] Their weight is usually around 1.7-2.3 kg but can be as small as 1.5 kg and their length can be between 27.9-48 cm excluding their tail which is usually up to 24 cm. [6] [4] To save themselves from predators including larger mammals, snakes and birds, their tails can be lost when grabbed but will not be regenerated.