The Sundarbans is the world's largest mangrove forest, spread mainly across Bangladesh and India.
The forest occupies the tidal delta of the Ganges, Brahmaputra, and Meghna rivers on the Bay of Bengal. Its maze of channels, mudflats, islands, and salt-tolerant trees is shaped constantly by tides and river sediments.
The Sundarbans is famous as a habitat for the Bengal tiger, which has adapted to a mangrove environment. It also supports crocodiles, deer, monkeys, fish, birds, and many invertebrates. The forest helps reduce storm surges and protects coastal communities.
The name comes from the sundari tree, Heritiera fomes, an important mangrove species in the region. The forest is shared by two countries and includes protected areas recognized by UNESCO.