tiger fish, freshwater sharks and other giant creatures (and dangerous) that live in rivers and lakes.
Fish Texans with muzzle crocodile sharks love upstream, parsnips from 550 kg with a kind of poisonous Bayonet 20 cm long.
Fish elusive, threatening, shrouded in legend that inhabit the rivers as the tales of terror that fishermen have been handed down.
The tiger fish is the most dreaded of all: it has teeth that interlock to trap such as the piranha and it is so aggressive attack even crocodiles.
Hunted, studied and then released into the water by biologists as Jeremy Wade (pictured).
Atractosteus spatula is one of the typical American freshwater fish of large size: it was in fact captured in Louisiana a specimen that weighed over 135 kg and was about 3 meters long.
Now it is increasingly rare even in his preferred environment (an arc from the Gulf coast of Veracruz to the Missouri and Ohio rivers). This huge predator had been "accused" of eating fish for sport fishing and waterfowl.
careful studies have shown that the charge was groundless because it actually feeds on fish essentially devoid of interest to fishers and crabs.
Zambezi shark (Carcharhinus leucas), also known as carcarino leuca or shark, shark species is a potentially dangerous man, often confused with the bull shark (also because of its English name, Bull shark, often clumsily translated literally).
The carcarino has the ability, unique among sharks can live in fresh or salt water. The species is threatened by overfishing.
E 'a mainly tropical and subtropical shark that rarely goes to temperate waters. You can often see in coastal waters, even lower. His physical supports high variations in the salt gradient, and this can easily be found in freshwater, where it can safely live and reproduce.
The carcarino has the ability, unique among sharks can live in fresh or salt water. The species is threatened by overfishing.
E 'a mainly tropical and subtropical shark that rarely goes to temperate waters. You can often see in coastal waters, even lower. His physical supports high variations in the salt gradient, and this can easily be found in freshwater, where it can safely live and reproduce.
Himantura chaophraya caratterizzata dal corpo piatto romboidale, grandi pinne pettorali a forma di ali, coda sottile e lunga, occhi posti sul dorso, bocca ventrale. Si differenziano dalle "cugine" razze della famiglia rajidae per la presenza dell'aculeo velenoso sulla coda, il quale produce l'ittioacantossina e provoca effetti simili alla cancrena e al tetano. Gli esemplari più grandi (appartenenti alla specie Himantura chaophraya) possono raggiungere 4,60 metri di lunghezza e 1,90 metri di larghezza.
Negli esemplari di maggiori dimensioni, l'aculeo può arrivare fino a 35-40 centimetri di lunghezza, ha un profilo dentellato ed è rivestito da una epithelial sheath. At the root dell'aculeo are two poison glands that secrete a substance composed of the enzymes 5-nucleotidase and phosphodiesterase, which destroys the cells, and serotonin, which causes muscle contractions.
The action of this cocktail is necrotizing and this is added the possibility of severe bacterial infections also. Depending on the affected area dall'aculeo, the course may even be fatal (see the example of television presenter Steve Irwin, who died in Australia after a blow from a stingray Sept. 4, 2006). The sting usually is broken and remains in the wound: the animal is not a serious injury, as grows at a rate of about 1-1.5 centimeters per month.
The action of this cocktail is necrotizing and this is added the possibility of severe bacterial infections also. Depending on the affected area dall'aculeo, the course may even be fatal (see the example of television presenter Steve Irwin, who died in Australia after a blow from a stingray Sept. 4, 2006). The sting usually is broken and remains in the wound: the animal is not a serious injury, as grows at a rate of about 1-1.5 centimeters per month.
Hydrocynus or Goliath tiger fish. Exceed 1.8 m in length and can weigh over 57 kg. The tiger fish which is in the Congo River is the largest of the species.
These fish are found in many African rivers and lakes of the continent and are ferocious predators with distinctive protruding teeth. Have teeth in the shape of daggers protruding when mouth is closed
These fish are found in many African rivers and lakes of the continent and are ferocious predators with distinctive protruding teeth. Have teeth in the shape of daggers protruding when mouth is closed
The Acipenser Transmontanus is an endemic species of Pacific coast of North America between Alaska and Baja California. It was introduced in many other states in the U.S. and Europe, including Italy, where, however, do not know if you play spontaneously.
is an anadromous species that live in the sea and enters the rivers only for reproduction but also know people who spend their entire lives in rivers.
Like other sturgeons, which can be distinguished only by counting the fin rays and the characteristics of bony shields skin.
The color is gray to brownish gray with white belly and fins. Exceed 6 meters in length, a size of 2 meters is considered common.
The Bagarius yarelli is one of the largest varieties of catfish was widespread in the south and southeast Asia. Reaches 2 meters long and weighs about 80 kg. It feeds mainly on shrimp, but can also eat small fish and aquatic insects.
His relationship with man is becoming quite particular subject of media attention when reports emerged of some of those who claimed that his power base was the funeral pyres semibruciati bodies in the rivers under the Himalayas.
It is assumed that some drownings were caused by large specimens that have attacked bathers in the river. This is the subject of a television documentary aired as an episode of Animal Planet series Monsters River.
It is assumed that some drownings were caused by large specimens that have attacked bathers in the river. This is the subject of a television documentary aired as an episode of Animal Planet series Monsters River.
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