Beavers are the world’s second-largest rodents, outsized only by the South American capybara. Across the Atlantic, European beavers—a separate subspecies—look and act almost identically. As a keystone species, beavers create an ecosystem that other organisms rely on. While not everyone is happy about the beaver taking up residence on their land, they can be a boon to agriculture, filtering out pollutants caused by chemicals in pesticides and fertilizer. In this article, you will learn about the integral role beavers play. As the stewards of God's creation, we sometimes need to understand and work with nature to address problems.