Beaver dams are little engineering marvels. Branch by branch, they work industriously and purposefully to make their environment better. The renownedly hard-working beaver has been transforming freshwater landscapes for millenia, chopping down trees with their iron-reinforced orange incisors to construct dams that restrict water flow, thereby enhancing its usefulness, and produce wetlands that are home to an astounding variety of species. Their robust lodges, constructed of mud and wood, feature submerged entrances that shield them from predators and ensure the safety of their families.