Top 15 Interesting Facts about Sundarbans
Originally Published by Ivone on July 2022 and Updated by Purity M on May 2024
1. It’s the Largest Mangrove Forest

Mangrove in Sundarbans photo by Amartyabag Wikimedia
Sundarbans has got largest Mangrove forest in the world. One of the primary reasons behind the growth of mangrove vegetation is the salty coastal waters all around the Sundarbans.
2. Sundarbans has total of 102 islands
3. The Unique Tidal Phenomenon Of Sundarbans

The sunrise in Sundarbans photo by Touhid biplob Wikimedia
Sundarbans has a unique Tidal Phenomenon occurring twice a day. There are high tides which are formed when the water level rises around 6-10 feet and low tides when the huge mud land area lying flat.
4.Gosaba The Biggest Inhabited Island On Sundarbans
5. Sundarbans shelters over 400 majestic and fiery Royal Bengal Tigers

Bengal Tiger in Karnataka, India photo by Paul Mannix Wikimedia
Sundarbans Tiger Reserve counts the highest number of tigers in the world. While roaming around the dense evergreen delta-forests, you will actually feel the presence of wild animals around you. Unlike other national park, wildlife safari has been done by ferries and boats here.
According to the 2015 tiger census in Bangladesh, and the 2011 tiger census in India, the Sundarbans have about 180 tigers (106 in Bangladesh and 74 in India).
6. Sundarbans which was named after a mangrove tree named Sundari
7. It has existed for more than 200 years

Sun in Sundarbans photo by bri vos Wikimedia
The Sundarbans which was originally measured (about 200 years ago) to be of about 16,700 square kilometers (6,400 sq. mi). Now it has dwindled into about one-third of its original size.
8.The Sundarbans has the largest Fishery Board in India
9. It has a total of 334 plant species
10. Get to watch the Phytoplanktons during the new moon night

Phytoplankton photo by Safa.daneshvar Wikimedia
On a new moon night, on night safari one can see the phytoplankton in the water. Phytoplanktons are the microorganisms which reflect light in the dark. Under the moonlight, it is difficult to see the phytoplanktons lights.
11. It is a haven for birdwatchers
Over 300 bird species dwell among the dense canopy and soar over the waterways. From the majestic Brahminy kite, with its reddish-brown plumage and white markings, to the jewel-toned kingfisher, it is home to numerous species. With about 139 migratory species in winter and summer, the area is a true birdwatchers dream.
12. It has a unique ecosystem
The Sundarbans thrives in a unique brackish water environment, where the freshwater from rivers like the Ganges meets the Bay of Bengal’s salty waters. This delicate balance, constantly shifting with the tides, allows a variety of plants and animals to flourish. This dynamic creates a niche for specialized species that have adapted to thrive in the ever-changing environment.
13. It is home to the endangered Gangetic dolphin
The endangered Gangetic dolphin, a freshwater mammal is known for its long pointed snout and poor vision. The presence of this freshwater species in the Sundarbans highlights the complex interplay between the river systems and the Bay of Bengal, creating a habitat suitable for a diverse range of aquatic life.
However, it still faces significant threats in the Sundarbans, including habitat degradation from pollution, dam construction, and water diversion. Conservation efforts are essential, including the establishment of protected areas and the promotion of sustainable practices to ensure the health of the river systems.
14. Acts as a natural barrier protecting the coastlines
The Sundarbans acts as a natural barrier, safeguarding the coastlines of India and Bangladesh from the wrath of cyclones and storm surges. The dense network of mangrove trees acts as a giant buffer zone, absorbing the brunt of powerful winds and waves, mitigating their impact on human settlements.
Studies have shown that areas with healthy mangrove forests experience significantly less damage during cyclones, highlighting the Sundarbans’ crucial role in protecting millions of people in the coastal regions.
15. Part of the world’s largest delta
Nestled at the edge of a geographical giant, the Sundarbans is part of a bigger story. The Ganges, Brahmaputra, and Meghna rivers, titans among waterways, converge here, creating the world’s largest delta.
Over millennia, these rivers have tirelessly deposited rich sediments, crafting the perfect platform for the Sundarbans to emerge. This fertile base, coupled with the unique meeting of freshwater and saltwater, provides the ideal conditions for the Sundarbans’ intricate ecosystem to thrive
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