North American Porcupine Erethizon dorsatum

North American Porcupine
North American Porcupine
North American Porcupine
The North American Porcupine, also called Common or Canadian, is a large, tree-climbing rodent native to Canada, northern and western USA and northwestern Mexico. The ground-dwelling African/Eurasian porcupines are a totally different family of rodents.
North American Porcupine
North American Porcupine
North American Porcupine
The name porcupine means pig with spines. When under threat from a perceived predator, they raise their quills which are mostly hidden under their dense fur. If the quills, when raised, are touched by another animal they detach and the needle-sharp quills with pull-resistant backward barbs are difficult for the victim to dislodge.
North American Porcupine
North American Porcupine
North American Porcupine
Porcupines have even been known to stab themselves with their quills (such as when falling out of a tree) and have an antibiotic substance on their skin to reduce infection from injury. The North American Porcupine is the only species in its genus. The smaller, lighter-weight South American Tree Porcupines with prehensile tails are in a different genus.