beaver dam
Quick Summary
Beavers are skilled architects that construct dams to create deeper water around their lodges, which are dome-shaped homes made of sticks and mud. This increased water depth serves as a defense against predators and allows for underwater entrances to their lodges, providing a secure way to enter and exit.1
These dams form ponds that are vital for beavers, offering a stable water source and a place to store food underwater for winter. Beavers are often called "ecosystem engineers" because of their ability to modify their environment. The ponds and wetlands created by beaver dams also support diverse aquatic life, benefiting fish and waterfowl, and contributing to the overall health and biodiversity of the local environment.1
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
