Aside from humans, perhaps no other species can modify its surroundings for its own purposes as much as beaver.
Throughout much of North America, these busy critters take down trees and dam streams to create waterways safe from predators and to lay up enough woody food stores to last the winter.
This exuberant activity is why beavers are known as “ecosystem engineers,” or species that profoundly change their environment in out-sized proportion to their numbers. [Read more…] about How Beavers Modify Forests: New Understandings
Beavers are the great architects of American ponds and streams. The North American beaver competes with the Eurasian beaver to be the 2nd largest rodent in the world, after another semi-aquatic mammal, the South American Capybara.