pond and lodge
Dams
The beaver builds its dams across small streams, often just upside a rapid or close to stones. Gnawed-off branches are laid across the water, and the dam is sealed with mud. The water then rises several decimeters – sometimes a metre or more. If the dam breaks and water rushes through, it is repaired.
Lodge
The beaver builds its lodge at the water's edge, with an entrance below the surface. Inside the lodge, there is a food chamber just above the water level and slightly higher a sleeping chamber. Outside, the lodge is sealed with mud.
