Big Fish Texas

Lurking in the murky depths of the world's great waterways are bizarre giants — specimens of such enormous proportions and odd appearance they boggle the mind. Remarkable freshwater fish that can reach astonishing lengths of 3.5 metres, weigh a scale-busting 200 kilograms and carry heavy suits of scaly armour. Some breathe air and are even rumoured to prey on people! Other aquatic giants have survived since the dinosaurs but now are dwindling in numbers and face an all-too-real threat of extinction. (Source: National Geographic)