piikkisika
Piikkisika is the Finnish word for porcupine. These rodents are characterized by their distinctive coat of sharp spines, which serve as a defense mechanism against predators. When threatened, a piikkisika can raise its quills, making it a difficult and painful target. They are primarily herbivorous, feeding on bark, roots, fruits, and leaves. Piikkisiat are generally nocturnal and solitary animals, although their social behavior can vary depending on the species. There are two main families of porcupines: Old World porcupines and New World porcupines, which differ in their physical characteristics and geographical distribution. The Eurasian or crested porcupine, Hystrix cristata, is one of the largest rodent species and is found in parts of Europe, Africa, and Asia. New World porcupines, such as the North American porcupine, Erethizon dorsatum, are arboreal and have prehensile tails. Despite their formidable appearance, piikkisiat are not aggressive and will only deploy their quills as a last resort. Their presence in an ecosystem plays a role in seed dispersal through their foraging habits.