Six critically endangered Mekong giant catfish — one of the largest and rarest freshwater fish in the world — were caught and released recently in Cambodia, reviving hopes for the survival of the species.

Six critically endangered Mekong giant catfish — one of the largest and rarest freshwater fish in the world — were caught and released in Cambodia recently in just a few days, offering new hope for the survival for the species.

Conservationists in Cambodia on Friday celebrated the discovery of six highly endangered Mekong giant catfish in the critical Southeast Asian waterway plagued by illegal fishing, habitat loss and plastic waste.

Fishermen in Cambodia have been having a streak of good luck lately. Researchers say they caught three Mekong giant catfish, one of the rarest and largest freshwater fish in the world. These fish, when caught,