Cambodian villagers on the Mekong River have caught what researchers say is the world’s biggest freshwater fish ever recorded, a stingray that weighed in at 661 pounds. | CNN

Cambodian fisherman catches world’s largest freshwater fish

Last week, a fisherman in northern Cambodia caught ​​the largest freshwater fish the world has ever seen. The 300-kilogram (661-pound), 13-foot stingray is a critically endangered species, thought to be on the brink of extinction, and a stark reminder of the unique biodiversity and megafauna that is being threatened by pollution, overfishing and the construction of dams along the Mekong River – home to more giant fish species than any other river on Earth. Experts have warned that populations of