Why are piranhas so powerful?

This is because its neck is short, its skull, especially the palatine bone, is very hard, and the bite force of its upper and lower jaws is amazingly strong. It can bite through cowhide and even hard wooden boards, and can take a steel fishing hook in one bite. If it bites off, other fish will certainly not be its opponent. The crocodile, which usually dominates the water, will shrink into a ball in fear once it encounters a piranha, turn its body to the sky, put its hard back down, and immediately float to the surface of the water, so that the piranha cannot bite its abdomen and save itself. One life.

Piranhas have sharp teeth and well-developed lower jaws with spines. They are famous for their ferocity and can reach 200 mm in length. It cannot be kept with other fish and likes weakly acidic soft water. The suitable water temperature is 22℃-28℃. In the Amazon River Basin, when people cross the river, they often throw beef or other things into the river to lure the piranha away. In Brazil's Mabar Grosso state, where piranhas are most active, about 1,200 cattle are eaten by piranhas in the river every year. Children playing in the water and women doing laundry are also attacked by piranhas from time to time. According to statistics from biologists, there are more than 20 kinds of piranhas that have been discovered so far, not only in the Amazon River Basin, but also in some Latin American countries east of the Andes in South America, from the southern coast of the Caribbean to northern Argentina.

Although the piranha is small in size, its temperament is very ferocious and cruel. Once the bitten prey is bloody, it will go crazy and use its sharp teeth to bite and cut like a surgeon's scalpel until a pile of bones is left.