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Which is the national aquatic animal of India?
1. Crocodile
2. Gangetic Dolphins
3. Alligator
4. Soft shelled tortoise

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Correct Answer - Option 2 : Gangetic Dolphins

The correct answer is Gangetic Dolphins.

  • The Gangetic river dolphin is India's national aquatic animal and is popularly known as ‘Susu’.
  • Dolphins are one of the oldest creatures in the world along with some species of turtles, crocodiles, and sharks.
    • The Ganges river dolphin was officially discovered in 1801.
    • Ganges river dolphins once lived in the Ganges-Brahmaputra-Meghna and Karnaphuli-Sangu river systems of Nepal, India, and Bangladesh. But the species is extinct from most of its early distribution ranges.
    • The Ganges river dolphin can only live in freshwater and is essentially blind.
    • They hunt by emitting ultrasonic sounds, which bounce off of fish and other prey, enabling them to “see” an image in their mind.
    • They are frequently found alone or in small groups, and generally a mother and calf travel together.
    • Calves are chocolate brown at birth and then have grey-brown smooth, hairless skin as adults.
    • Females are larger than males and give birth once every two to three years to only one calf.
  • It is among the four freshwater dolphins in the world- the other three are:
    • The ‘Baiji’ is now likely extinct from the Yangtze River in China.
    • The ‘Bhulan’ of the Indus in Pakistan
    • The ‘Boto’ of the Amazon River in Latin America

  • Vikramshila Gangetic Dolphin Sanctuary:
    • It is situated in the Bhagalpur district of Bihar, India.
    • The sanctuary is a 50 km stretch of the Ganges River from Sultanganj to Kahalgaon.
    • It was designated as a protected area for the endangered Gangetic dolphins in 1991.

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