daw840 said:Holy shit they are inhabiting fresh water now?!?!?!?!?
http://www.environmentalgraffiti.com/featured/10-most-diabolical-fish-on-earth/8156
The body of this fish is built for speed and power; and with its scaly armour, pointed fins, and conspicuous need for a brace even when its mouth is shut, the Tigerfiish is highly prized as a game fish. Found in freshwater across Africa, the Tigerfish will chomp on practically any fish that strays into its path using strong jaw muscles and dagger-like teeth that mesh together like the Piranhas. Its even reputed to take on prey as big or much bigger than itself; added reason to stay out of the water. Fishermen have a healthy respect for the Goliath Tigerfish, a monster uniquely adapted to the Congo River that the National Geographic recently described as an example of evolution on steroids. Make that evil-lution on steroids.