Experts in the field of the animal world were able to capture thousands of photos of tigers in the forest of Nepal using cameras hidden in different areas. The pictures taken inspire optimism because they show that the number of tigers in this Himalayan country has doubled within a decade after this wild animal was threatened with extinction. In 2009, only 121 tigers were counted, with that number doubling to 235 in about ten years, according to a recently completed census conducted by ecologists. Scientists planted about 3,200 cameras in nature to capture pictures of tigers. Among those conducting this census is Chayan Kumar Chaudhary, 25 years old. He is one of the locals trained for the task in Bardiya National Park, where the number of tigers has nearly five times greater. Chayan Kumar Chaudhary, helped track and record the tigers' movements and review the mass of images taken by the hidden cameras. The lowlands of southern Nepal, home to five national parks, have been divided into sections and each section is equipped with devices equipped with motion and temperature sensors. It was sometimes necessary to use elephants to install cameras deep in the forest, according to Man Bahadur Khadka, director of Nepal's Department of Wildlife Protection and National Parks. Soon the first pictures began arriving at the center, where individual tigers, female tigers and their cubs were photographed, and sometimes tigers hunting new prey. But Chaudhary's favorite images are those that depict tigers basking in their beauty in front of cameras. Read also on Euronews: New indications of Moscow's involvement in the US elections, and the Kremlin denies United Nations: More than 200 mass graves of ISIS victims discovered in Iraq Will a pornographic film actor become Minister of Culture in Brazil? The process of photographing tigers in Nepal began in November 2017 and ended last March. This process allowed the production of more than 4,000 images. “When we started analyzing the images, just like human fingerprints, tiger stripes are unique and vary from one tiger to another,” Khadka says. The key to the success of tiger conservation in Nepal, according to experts, was involving local people in protecting them while they could earn thousands of dollars from tiger poaching. A century ago, Nepal's dense forests were a hunting ground for the kingdom's rulers. The number of tigers around the world was estimated at 100,000 in the year 1900, and this number decreased to 3,200 in 2010. In Nepal, the number of tigers declined significantly at the end of the decade of civil war (1996-2006) due to the increase in hunting and trade in the skins of this animal. In 2009, the government recruited hundreds of young volunteers to protect national parks and carry out anti-poaching patrols. The country also tightened its laws, with Nepal imposing strict penalties on poachers of up to 15 years in prison and a large fine. In 2010, Nepal and 12 other countries that host wild tigers signed an agreement to double the number of tigers by 2022.