Thursday, August 11, 2011

Piranha The Killer

One year, the Car Show gave the latest Mercedes as a reward to the one who pulled the keys out of the aquarium with piranhas. No one dared to puts his hand so that the award stay at the Mercedes. But is this fish really that dangerous? There are various myths about piranhas such as how they can dilacerate a human body or cattle in seconds. These myths refer specifically to Serrasalmus nattereri, the red-bellied piranha.  A recurrent myth is that they can be attracted by blood and are exclusive carnivores.  A Brazilian myth called “piranha cattle” states that they sweep the rivers at high speed and attack the first of the cattle entering the water allowing the rest of the group to traverse the river.  These myths were dismissed. Nevertheless, a study in Suriname found that piranhas may occasionally attack humans, particularly when water levels are low.  Attacks on humans are usually reported around docks where fish are frequently gutted, and entrails are commonly thrown into the water.
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