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??????? ?? ??????? ??? ??????? ?? ????? ???? ??????????? ?????????? ???????? ??? ????? ???? ???, ?? ?? ?? ??? ??????? ?? ??? ?? ?? ????? ???? ????? ?? ??????? ?? ??? ??. ?? ?? ?? ???? ???? ??? ????? ??????? ????? ??? ??? ???. ??????? ??????? ?? ?????? ???????? ????? 1200 ?? 1800 ?? ??? ????.

After years, the South Asian River Dolphin, commonly known as Ganges Dolphin, has been spotted from different ghats in Kolkata. These mammals, the only freshwater dolphins in the world, have been categorised as 'critically endangered' and have not been seen near Kolkata for years pic.twitter.com/o9HLnz2g5h

¡ª Shiksha IAS Academy (@ias_shiksha) April 22, 2020

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