A man holds a newborn giant stingray caught by local fishermen on the Banpakong River near Bangkok, Thailand. The mother stingray measured 14 feet (4 meters) long and weighed an estimated 200 to 300 pounds (90 to 140 kilograms). Scientists hope the presence of a baby and a pregnant mother mean the river is a nursery for these threatened freshwater giants.
The world's largest freshwater fish are losing the fight for survival as pollution, overfishing, and construction threaten the rivers and lakes they call home.