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Piranhas will often scavenge, [9] and some species such as Serrasalmus elongatus are specialized scale-eaters, feeding primarily on scales and fins of other fish. [3] Scale- and fin-eating is more widespread among juvenile and sub-adult piranhas. [20] Piranhas lay their eggs in pits dug during the breeding season and swim around to protect them.
To maintain a piranha aquarium, it is important to keep the water quality up, as they are messy eaters, and this will dirty the water in the tank. Also, they need places to hide in dim light. Because in the wild they may not eat every day, those in captivity do not need to be fed daily, but when hungry, they can eat each other. [27]
This characteristic combined with its large size make it a danger to humans. Piranha's attacks on humans are anecdotal for the most part. The piranha mostly prefers to eat small fish and insects, along with seeds and aquatic plant material. The pygocentrus piraya plays a key role in their ecosystem by regulating the population of other fish [5]
On "River Monsters," Jeremy Wade traveled to South America to investigate where a Bolivian man named Oscar was killed when face was ripped off while swimming across the South American River.
Pygocentrus is a genus of the piranha family Serrasalmidae. All species are native to tropical and subtropical South America. All the species are predatory, scavengers and may form large schools. The famous red-bellied piranha, Pygocentrus nattereri, is one of four species in the genus. [1]
Every so often we hear horrifying stories of modern day cannibalism. In 2012, a naked man attacked and ate the face of a homeless man in Miami.That same year, a Brazilian trio killed a woman and ...
[1] An idiomatic (rather than ecological) definition is preferred here because although, statistically, attacks on humans by wild carnivores are an extremely rare cause of death—even in regions with high levels of human-wildlife interaction and relatively high absolute numbers of attacks [2] —the topic remains one of great fascination [3 ...
This can cause the sharks to go wild, biting anything that moves, including each other or anything else within biting range. Another functional explanation for feeding frenzy is competition amongst predators. [2] This term is most often used when referring to sharks or piranhas. [3]