May 30: American biologist Zeb Hogan, top left, and British angler Rick Humphreys, right, together with their Thai fishing teammates measure a stingray after capturing it in the Maeklong River in Samut Songkram province, Thailand.
AP
April 2008: This photo released by the University of Nevada-Reno, shows American biologist Zeb Hogan posing with a giant stingray in the Mekong River.
AP
May 30: American biologist Zeb Hogan, left, and British angler Rick Humphrey, right, chat while examining a stingray captured by two Thai fishermen, center, in the Maeklong River in Samut Songkram province, Thailand.
AP
May 20: American biologist Zeb Hogan talks while examining a stingray captured by a Thai fisherman in the Maeklong river in Samt Songkram province, central Thailand.
AP
May 29: A Thai fisherman fishes for stingray in the Bang Pakong River in Cha Cherng Sao province in central Thailand.
AP
May 29: A fishing team led by British angler Rick Humphreys, top right, chat while planning a stingray fishing trip in Cha Cherng Sao province, in central Thailand.
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