PHNOM PENH, Cambodia (AFP) — A fisherman on the Mekong river in Cambodia has hooked the biggest freshwater fish ever recorded, scientists said — a 300-kilogram stingray. The giant freshwater stingray, which measured four metres (13 feet) from snout to tail, was caught last week and released back into the wild after being fitted with a tag to track its behaviour. The monstrous bottom-dweller beat the previous record for biggest recorded freshwater fish, held […]