Mangrove forests are also known as tidal forests, as they are found in the eastern coast along the deltas of the rivers Ganga, Brahmaputra and Cauvery. One unique feature of these forests is that they can survive well in both salt water and freshwater. The roots of the trees found in these forests are exposed to air, as the swamp (in which they grow) restricts the intake of oxygen. These roots are referred to as breathing roots.