River Otter Returns to Detroit River

Recently, a man walking along the Canadian side of the Detroit River was surprised to see a river otter diving in the water. The sight was remarkable since otters had not been seen in the river for more than a century. Pollution in the river had made it impossible for several animal species to survive there, but the recent sighting gave hope that the health of the river was improving. Listen to learn about the return of river otters in the Detroit River and why it is good news for humans.