People actively hunt wolves to protect their livestock. But in some places wolves are being hunted towards extinction. Wolves are a critical keystone species in a healthy ecosystem. By regulating prey populations, wolves enable many other species of plants and animals to flourish. Without predators, such as wolves, the system fails to support a natural level of biodiversity. Just like beavers, wolves aide the ability for the forests and grasses to grow and water to accumulate. Wolves are importa

Against all odds, gray wolves have managed to return from the brink of extinction--a cause for celebration considering how vital they are to keeping the ecosystem in balance. | National Geographic TV