Giant catfish in Thailand

In this photo released by World Wildlife Fund-National Geographic, two Thai fishermen show a 293-kilogram (646-pound) giant catfish they caught from the Mekong River in Chiang Khong district of Chiang Rai province, northern Thailand in mid-May, 2005. Six proposed dams on the Mekong River could displace up to 75, 000 villagers and harm hundreds of species like the endangered giant catfish, conservationists warned Tuesday, Nov. 13, 2007. (AP Photo/World Wildlife Fund-National Geographic, Suthep Kritsanavarin, File)

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