In 1921, Acadia reintroduced 4 beavers to Mount Desert Island; a trapped-out native engineer returned, and today the US holds an estimated 6 to 12 million beavers

Upon discovering that beavers had been wiped out by trappers, park officials took action by reintroducing them to Mount Desert Island. This initiative not only revived their population, but also catalyzed their expansion across the country. Beavers are now celebrated as key architects of their ecosystems, their dam-building altering water flow and fostering new wetlands. This case exemplifies the positive influence of conservation efforts on natural landscapes.
Read more at the source

Disclaimer: The content of this post is sourced from external sites and is for informational purposes only. All rights and credits belong to the original authors and publishers.