Dogs are often territorial. They sometimes cannot endure the sight of even a bird around their area. To provide an apt example, an Instagram video shows two Golden Retrievers, Wrigley and River ...

Wild black-tailed prairie dogs use alarm calls to warn one another of predators, and some grassland birds are listening in. Photo credit: Andrew Dreelin, Smithsonian’s National Zoo and Conservation ...

A long-billed curlew flies over the Great Plains. New research suggests the birds react to danger more quickly when they hear prairie dog alarm calls. Andy Boyce, Smithsonian’s National Zoo and ...