In a remarkable example of natural engineering, beavers constructed a dam that filtered polluted water flowing into a protected area—achieving what local authorities had spent seven years planning but had not yet implemented. The animals unknowingly completed the project for free. The beaver dam slowed water flow, trapped sediment, and prevented contaminated runoff from spreading downstream. When officials inspected the site, they realized the dam accomplished the same environmental goals as a p

✨Beaver facts with Sarika✨ Did you know beavers can build a dam in under 24 hours? Link in bio to watch Beavers From Above on CBC Gem and The Nature of Things YouTube 📺 | CBC Docs