National Geographic Society

  • Connect:

Giants of Thailand

Biologist Zeb Hogan stands in Cheow Lan Lake holding a Mekong Giant Catfish, a fish whose weight he estimates to be 150 pounds. Thai government scientists stock these endangered giants, forcing fishermen to release two catfish for every one of these caught.

Check your local listings.

Join Hogan on his quest to find and study the world's largest freshwater fish in Thailand waters. He'll travel the country in search of 600-pound Siamese carp, 10-foot-long Mekong giant catfish and the endangered giant freshwater stingray, among others. Then, he'll visit protected areas where the government has establish no-harvest zones, and meet a teenage entrepreneur who has become a top dealer of freshwater giants.