A fisherman transports a dead whale shark after it was caught in fishermen's net, in Yangzhi county, Fujian province August 1, 2014. According to local media, the whale shark is five-metre-long and weighs over 2 tonnes. (Photo by Reuters/Stringer)

A devotee carrying an idol of the Hindu god Ganesh, the deity of prosperity, jumps into the Sabarmati river to immerse the idol on the last day of the 10-day-long Ganesh Chaturthi festival in Ahmedabad, India, September 27, 2015. (Photo by Amit Dave/Reuters)

After a long time renovation project, the old town in Taiyuan city which was founded in 1357, finally lights up and opens to public in Taiyuan City, north China's Shanxi Province, 23 November 2020. (Photo by Rex Features/Shutterstock)

A man dressed as Pothuraju, a mythical character, performs rituals during the Bonalu festival in Hyderabad, India, Thursday, June 30, 2022. Bonalu is a month-long Hindu folk festival of the Telangana region dedicated to Kali, the Hindu goddess of destruction. (Photo by Mahesh Kumar A./AP Photo)

Regina Sarrubbo (25, Long Island resident, personal fitness trainer) takes advantage of the Brooklyn Bridge Park in NYC waterfront by working on her flexibility moves on June 18, 2020. (Photo by Paul Martinka/The New York Post)

Uzbekistan's Ekaterina Voronina competes during the long jump in the women's heptathlon at the 2022 Asian Games in Hangzhou in China's eastern Zhejiang province on October 1, 2023. (Photo by William West/AFP Photo)

Stunning image capture the moment a tiny harvest mouse uses wheat stems as stilts as he munches on a kernel in UK in August 2025. The minute-mouse, who weighs as much as a 2p coin and is only two-inches-long, uses his prehensile tail to keep himself perfectly level. (Photo by Tony Nellis/South West News Service)

Among the fish populations that could be harmed by the Xayaburi dam in Laos is the critically endangered Mekong giant catfish, considered by the Guinness Book of World Records to be the world’s largest freshwater fish. The fish, which grows to 650 pounds and about 10 feet long, is only found in the Mekong River. It is migratory, moving between downstream habitats in Cambodia upstream to northern Thailand and Laos each year to spawn. Some experts fear the Xayaburi dam could block the migration and drive the giant catfish to extinction. (Photo by Courtesy of Zeb Hogan/University of Nevada, Reno)