Beaver Dam is a dam construction unique buildings made by animals. Beaver Dam made from pieces of wood or tree branches are arranged neatly, so it formed a dam of timber. This is an interesting thing to see, and we can know how a group of intelligent animal that can build a huge dam just pieces of wood and twigs of trees. Usually the length of the dam made by beavers animals are on average between 10-100 meters, but there is also the world’s longest Beaver Dam extends for a mile, are in remote areas in northern Alberta, but there are lots of Beaver Dam in the state of Canada.
Unique dam made by beavers animals actually aims to accommodate the water to nest otters were protected from predators. The dam is also used to float an otter food and building materials they need to nest.