The dolphin, an endangered species, died after swallowing a discarded fishing net.
The investigation was carried out by India’s marine research institute.
Data show that many marine mammals are stranded each year, often because of plastic debris.
Reducing plastic waste and retrieving ghost nets can help protect ocean wildlife.
Scientists call abandoned fishing gear ‘ghost nets’; they continue to catch and kill marine animals long after being lost.
The incident underscores the increasing threat of plastic pollution to marine life and the need for better waste management.
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