GIANT SAWFISH

Sawfish
Sawfish have a long shark tail which helps it to move through the water very gracefully and very rapidly. The sawfish is a fish which lives on the bottom of its environment, and feed there. It is called a bottom dweller and its flat head and body indicate this to the observer.
Tropical rays, which are in some circles thought to be related to sharks, Sawfish are found in rivers, lacks and places here saltwater will be mixed with fresh water in Australia.Sawfish have a very flat body, with a long flat snout that has given them the nick name, sharks with swords.The sharp teeth on each side of the sword are not really teeth, but scales which have hardened into sharp tooth like state. Inside the jaw are also literally thousands of small teeth.
In the same fashion as other ray type creatures, the nostrils and their gills are below them, on the flat part of their bodies.They may range in color from tan to deep brown, usually depending on the locale where they live, but also in part depending on the species.

The females bear live young, which are born with a soft sword rather than a hardened one. It does harden but takes several days to do so.
Sawfish eat smaller fish and invertebrates which live on the bottom of the area in which they live. Among their favorite foods are shrimp and crab, which they swallow whole.

They may grow in size up to 6 feet in length, and are the largest freshwater fish in Australia. Sawfish can travel from freshwater to salt water with no ill effects and do so regularly

The Goliath Tiger Fish

If South America had a piranha, a fish similar to the African tigerfish. Despite coming from very different species, both fish are known to be ferocious when chasing prey.
But unlike the piranha, tigerfish has 32 teeth arranged in an interlocking rare among the lower and upper teeth with a muscular body that is designed to move quickly.

Uniquely, this fish has air-filled sacs in the body that serves as a sound receiver. This tool is transmits the vibrations of the water to allow tigerfish will detect the presence of animals around and take appropriate action.

Tigerfish group to get the animal by any measure, including land animals that are too close to the river. Tigerfish adults generally hunt in small groups, consisting of 4-5 fish, but quite dangerous. As an illustration, one can catch prey tigerfish tail that has a size of her own.

Angler Jeremy Wade, a professional angler from England is one of the few people who caught the fish. He managed to beat tigerfish length of 5 feet or about 1.5 meters weighing 45kg after trying to arrest him for 8 days.




"This fish is very rare and hard to catch because he lived in a very remote area and difficult to reach," Wade said, as quoted from River Monsters, March 29, 2011. "There are no guides or accommodation in the area around the dwelling fish in the river Congo," he said.

Wade said the fish is also very dangerous to be caught. "If you are not careful, he can easily remove your finger or even worse," he said.

When the food is rarely encountered and competition for prey is very heavy, tigerfish can also perform cannibalism. According to research, it is common, especially in the dry season.

This fish is also known to attack humans and crocodiles. Tigerfish attack can be deadly because of its sharp teeth and a very aggressive hunting tactics.