why is blind dolphin facing extinction ?
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The most immediate cause is the use of nylon nets by fishermen. These freshwater dolphins are blind. They swim and find their prey through echolocation – they send out tiny sound waves, and the echoes tell their brain what is around.
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The Ganges river dolphin was officially discovered in the year 1801. These dolphins were once found in the Ganges-Brahmaputra-Meghna and Karnaphuli-Sangu river systems of India, Bangladesh and Nepal. But it is now extinct from most of its early distribution areas. Even in the Ganges river system, their numbers have been going down due to the effects of pollution
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