Blind dolphins saved from busy waterways in Pakistan by wildlife rescuers

Since 1992, the Pakistan-based conservation group Sindh Wildlife has been rescuing and relocating Indus river dolphins that stray from their natural habitats into busy waterways and irrigation canals. The animals have lost their sight through the course of evolution, and find their way through the muddy waters in their habitat using their echolocation systems also known as biosonar. The endangered Indus river dolphin is among four remaining species of freshwater dolphin in the world today. While they are endemic in Pakistan’s Indus River basin and a small group lives in India’s River Beas, their habitat has been polluted and reduced by dams for irrigation and other purposes.