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Tigers are the largest, most powerful cats on the planet. They are also endangered. A new study says tigers are far more at risk of extinction than wildlife experts believed. That means they could disappear forever. The new, census, or count, found fewer than 200 tigers are left in the Sundarbans mangrove forest of Bangladesh. The Sundarbans is one of the last remaining habitats, or natural homes, for tigers. It spreads across southern Bangladesh and eastern India. The latest census used infrared cameras to arrive at what wildlife experts believe is a more exact number than before. The cameras took pictures when they observed something with body heat. Now the entire forest is believed to hold about 182 tigers in both countries. Indian wildlife scientist Yadvendradev Jhala noted that more than three-fourths of the world’s tiger population lives in India and Bangladesh. He said the new census numbers show that the species is threatened. He blamed illegal hunting and a new power plant. He says bringing coal to the plant by boats on the water will divide the tiger populations. He says the smaller groups have a high chance of becoming extinct. A spokesman with the Bangladeshi Wildlife and Nature Conservation Division said the government plans to declare the entire Sundarbans a protected area. He said activities that threatened the tigers will be restricted. Some estimates say only around 3,200 tigers are left in the world.