Large, semi-aquatic rodent native to South America, characterized by its robust body, webbed hind feet, and prominent orange-colored incisor teeth. Invasive in many regions worldwide due to fur farming and deliberate introductions.
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Ecology & Habitat
Habitat
Freshwater ecosystems including marshes, rivers, lakes, and wetlands with dense vegetation, primarily in temperate and subtropical regions. Prefers slow-moving water bodies with abundant aquatic and riparian vegetation.
Ecological Role
Significant ecosystem engineer that modifies aquatic and riparian habitats through burrowing and feeding activities. Can cause substantial vegetation alterations and bank erosion, impacting local ecosystem dynamics.
Morphology
SKIN COATDense, waterproof fur; brown to grayish-brown coloration; thick underfur for thermal regulation
LIMBS WINGSWebbed hind feet for swimming; strong forelimbs for digging and manipulating vegetation; four-toed feet
HEAD SENSORYLarge, rounded head; small ears; prominent whiskers; eyes positioned high for surface swimming
BODY STRUCTURERobust, rounded body; adult mass 4-9 kg; body length 40-60 cm; tail length 30-45 cm; adapted for semi-aquatic lifestyle
