Large gars can grow as large as crocodiles and have armor so tough it helped them survive predatory dinosaurs.
There were no sharp fangs and deadly venom, but Anaconda was still a name that made everyone shudder with fear.
Jeremy Wade faced his greatest fear when confronted by a giant South American python, weighing over 90kg.
Jeremy Wade caught a 126kg stingray on Parana river near Buenos Aires, Argentina.
Jeremy Wade, the River Monster TV host, has an impressive collection of 127 kg stingrays, human-eating catfish, giant piranhas and transsexuals.