Rescuing Stranded River Dolphins With the Help of Satellites
Central Brazil’s Araguaia River flows over a thousand miles through rainforest, savannah and farmland. In dry season as the river’s water dwindles, endangered Araguaia River dolphins shimmy across sand banks to find pools of fish and deeper waters. Human-built irrigation dams can often block a dolphin’s path, trapping them in dwindling, shallow […]