There has been erosion of the habitat of tiger in the Sunderbans (West Bengal, India) due to global warming. The destruction of the mangroves has also adversely affected numbers of estuarine crocodiles, fishes and big crabs. Sunderbans is the world’s largest mangrove reserve and one of the most unique ecosystems in South Asia, which is recognized as a UNESCO World Heritage Site. But as sea levels rise, two islands have already disappeared and others are vulnerable. As sea levels rise, mangroves become overexposed to salt water. Many plants have lost their red and green colors and are more like bare twigs, thus exposing tigers to poachers. Since there had been loss of habitat, tigers sometimes come of the jungle, which makes the situation vulnerable to not only them, but also to the nearby villagers.