What is a nutria?

A nutria is indeed best described as a large rodent with potential fur value. These semi-aquatic mammals, also known as coypu, are recognizable by their long, rounded bodies and large, webbed back feet, which make them well-suited for life in freshwater habitats. Nutria are often found in wetlands, rivers, and lakes, where they feed primarily on aquatic plants.

In addition to their ecological role, nutria's fur has historically been prized for its warmth and durability, leading to its commercialization. This fur value can be significant for certain regions where nutria populations exist in sufficient numbers, inspiring some management practices that aim to control their population due to their potential impact on local ecosystems.

The other options present species that do not align with the characteristics of a nutria. While nutrias do inhabit wetlands and could be seen alongside other wildlife, the distinctions noted in the correct choice emphasize their classification and economic relevance.