If you have a survey, what kind of fish is the most dangerous on earth, Piranha will surely entered the top three winners. Despite the rather small size of the fish itself, the flock of piras in a matter of minutes leaves the skeleton that has fallen into the water in the water. At least this happens in numerous horror films and horror books. But is it really?
First you need to understand whether Piranha is really an extremely aggressive being that attacks the water to everything that moves. Perhaps it will sound unexpectedly, but Piranha is very careful fish, and no danger is for a person. There are a large number of testimonies when a man was floating in piranhawned water without harm to his health. It was fully demonstrated by Herbert Axeldorf - a famous biologist specializing in studying tropical fish. To prove the safety of Piranha for a person, Herbert filled a small pool with Piranhami and dived into it, leaving him only melting. I licking some time among the predatory fish and without having received any harm to my health, Herbert took the freshly impregnated with blood meat and continued to swim along with him. But several dozen pirands located in the pool still did not approach a person, although quite recently, it was pleasure to eat meat, when there was no one in the pool.
Piranhas, considered terrible predators with irrepressive thirst for fresh flesh, in fact rather timid fish, not daring to approach great creatures.
It is known that Piranieyeva is preferred to hold on in large stars, and if they saw one piranha in the water, others necessarily have others. But they do this Piranhas not because the flock of predatory fish is easier to fill up and kill a person who has shortened into the water, and due to the fact that Piranhas themselves are a link in the food chain for other larger fish species. Being in a flock of dozens of individuals, the chance that you will eat you, quite low.
Moreover, experiments with Piranham showed that, being alone, these fish feel not so calm as if they were surrounded by other fish.
But, despite his peace-loving behavior in relation to man, Piranhas are real murder machines for other species of fish that are below them in the food chain. Their powerful jaws are designed to bite and break, and dense muscular bodies are capable of performing incredibly fast movements and jerks under water. It is believed that the force of compression of jaw muscles relative to the size of the body in pirands is the highest compared to any other vertebrate in the world. For example, Piranha Ordinary can easily bite the adult finger.
But in history there was not a single reliable case of the attack of pirani on a fatal man. But this does not mean that these fish never bite a person or an animal into the water. And such behavior is almost always due to the non-aggressive behavior of the fish, but by self-defense or abnormal weather conditions, because of what piral behavior begins to differ sharply from the usual one. Under the abnormal weather conditions, the period of drought is meant when rivers in which Piranhas dwell, dry, and in the recesses filled with water, but cut from the main channel, there are many fish devoid of food. Fast predators gradually begin to eat themselves and may well rush to any creature that came close to the water. Sometimes the tendency of piranging to aggressive behavior is fixed during the spawning period, when they are thrown onto a person or an animal as self-defense, but such cases are extremely rare. And of course there is no speech about the collective attack of piranis per person.
But all of the above does not mean that Piranheyeva will refuse eating human meat. Unfortunately, there are sometimes tragic cases on water - people or animals are sown. Already a hopeless body floating in the water licks a lot of fish, including pirands that leave specific bites on it. Seeing this people think that the cause of death was the attack of pirands - it is also born by most of the myths about the attack of flocks of piras on people or animals.
This is interesting: Suppose some unknown way a huge flock of pirani from 400-500 individuals managed to be crazy, and now they attack everyone who will be in the water. For example, if this unfortunate will be an adult person, then 500 piras will be able to blame him to bones in 5 minutes!