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Extant: 45.4 kg (100 lb) 6: Eurasian beaver: Castor fiber: Extant: 40 kg (88 lb) 7: Cape porcupine: Hystrix africaeaustralis : Extant: 30 kg (66 lb) 8: Crested porcupine: Hystrix cristata : Extant: 27 kg (60 lb) 9: North American porcupine: Erethizon dorsatum: Extant: 18 kg (40 lb) 10: Indian crested porcupine: Hystrix indica: Extant: 18 kg (40 ...
It was approximately 20% larger than its closest relative, the living Indian porcupine (H. indica), reaching lengths of over 115 cm (45 in). It also differs from the Indian porcupine in having a high and narrow occipital region, in the anteriorly convergent arrangement of maxillary cheek-teeth series, and in its mandible and the cheek-teeth ...
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 ).
Indian porcupines are almost the same size on average as well, being slightly heavier on average than crested porcupine but slightly lighter than Cape porcupines. [5] [6] Cape porcupines measure 63 to 81 centimetres (25 to 32 inches) long from the head to the base of the tail, with the tail adding a further 11–20 centimetres (4.3–7.9 inches ...
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]
A porcupine's colouring aids in part of its defence as most of the predators are nocturnal and colour-blind. A porcupine's markings are black and white. The dark body and coarse hair of the porcupine are dark brown/black and when quills are raised, present a white strip down its back mimicking the look of a skunk.
This porcupine has a short tail which has rattle quills at the end. The rattle quills broaden at the terminal end and the broad portion is hollow with thin walls. When these quills are vibrated, they produce a hiss-like rattle. The front feet of the crested porcupine have four developed and clawed digits with a regressed thumb, the rear feet ...
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).