The Wetterhoun, also known as the Frisian Water Dog, is a medium-sized, curly-coated breed native to the Netherlands. It is known for its strong, sturdy build, distinctive curly fur, and webbed feet, which make it an excellent swimmer. The breed is traditionally used for hunting waterfowl and small mammals. Wetterhouns are loyal, protective, and often reserved with strangers, yet they form strong bonds with their families.

The Wetterhoun, also known as the Frisian Water Dog, is native to the Friesland province in the Netherlands. This region is situated in the northern part of the country and is known for its extensive waterways and wetlands.

The Wetterhoun is typically found in environments with abundant water, such as lakes, rivers, and marshes. The climate in Friesland is temperate maritime, characterized by mild, wet winters and cool, damp summers. The region's landscape includes a mix of grasslands, peat bogs, and low-lying areas prone to flooding.

The ecological niche of the Wetterhoun involves its role as a waterfowl hunting and retrieving dog. It is well adapted to swimming and working in wet conditions, thanks to its dense, waterproof coat and strong, sturdy build. The breed's historical use in hunting otters and other water game underscores its ecological niche as a skilled and resilient aquatic retriever.