In 2005, fishers in northern Thailand captured a Mekong giant catfish of gargantuan proportions. Tipping the scales at 293 kilograms (646 pounds), the critically endangered Pangasianodon gigas raised a question in conservation biologist Zeb Hogan’s mind: Is this the biggest freshwater fish ever caught? Posing the question in a public announcement following the find, Hogan … Continue reading ‘Chasing giants’: Q&A with megafish biologist and author Zeb Hogan