Photo Source: Google.com
The pacu is a South American freshwater fish found in most rivers in the Amazon and Orinoco valleys in the Amazonia lowlands. But it is reported to also be along Papua New Guinea, which is artificially known to help the local fishing industry.
The pacu is associated with a meat-eating piranha, both sharing the same subfamily, Serrasalminae, despite having different eating habits. Piranha is a carnivorous species while an omnivore runway with a vegetative tendency. The difference is seen in the structure of their teeth. Piranha has sharp pointed teeth, while the pacemaker has a perpendicular tooth structure that is very similar to humans.
Photo Source: google.com
Pacu use their teeth primarily to destroy nuts and fruits, but sometimes they also eat fish and other invertebrates. They usually consume fruits and nuts that float from the trees in the Amazon. But it has been reported that there have been several cases in which fishes attacked male swimmers.
Runners are often dubbed ball-cutter or ball cutters, after they "castrate" some local Papua New Guinea fishermen. Therefore, when the runway fish was found in several lakes in Denmark, Washington, New Jersey and Illinois last year, mild panic struck the locals.
