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Notorious for their aggressive nature, piranhas generally avoid larger fish and animals unless starving or provoked into a feeding frenzy. The red-bellied piranha is the best known, but there are several species of piranha and their relatives that range from 1 foot to over 3 feet long.
Prehistoric The fossilized teeth of the megapiranha Megapiranha paranensis suggest that this prehistoric ancestor of the modern piranha grew up to 3 feet long.
The fossil teeth indicate it was an omnivore and possibly an intermediate step between the carnivorous piranha species and their vegetarian relatives. Found in the early s, the fossil teeth gathered dust in a drawer until the s, when it was located and identified by paleontologist Alberto Luis Cione and his colleagues.
True Piranhas The largest true piranha is the San Francisco piranha Pygocentrus pirayaalso known as the black piranha or black-tailed piranha.
Native to the Sao Francisco River basin in Brazil, this aggressive omnivore grows to more than 13 inches long and weighs up to 7 pounds. Its close relative, the infamous red-bellied piranha Pygocentrus nattereri lives in rivers and flooded rainforests across the Amazon basin.
Both species eat a variety of smaller fish, land animals, insects, crustaceans, fruits, seeds and aquatic plants. The Black Piranha The black piranha Serrasalmus rhombeusalso known as the white piranha because of its silvery coloring in its youth, is the largest of the Serrascalmus piranhas, growing up to 18 inches long in the Amazon river basin.
The black piranha -- which is distinct from the San Francisco piranha even though both species are commonly called "black" because of their appearance -- is a carnivore and eats a variety of crustaceans, insects, mammals, reptiles and small fish.
According to a research paper, "Mega-Bites: Extreme jaw forces of living and extinct piranhas," the black piranha has the most powerful bite among the living piranha species, with a force of more than 30 times its body weight.
Close Relatives The pacus are the piranha's close relatives, descended from the same ancestors as the megapiranha and piranha. The pacus are omnivores, eating mostly aquatic plants, vegetation, crabs and small fish.
They can be aggressive when hungry or provoked.The MechWarrior community caught fire in when Piranha Games released a trailer for their upcoming MechWarrior reboot, and it seemed like all Piranha needed to do was find a a publisher and.
Piranhas are South American fish with razor-sharp teeth and a reputation for feeding frenzies. In fact, piranha means "tooth fish" in the Brazilian language of the Tupi people. However, not all. The All New CNC Piranha XL® takes the Piranha series one step closer to a full size CNC for the fraction of the price.
Its large 12'' x 24'' cutting area makes it perfect for projects like carvings, plaques, ornamental boxes and precision parts machined from wood, soft metals, or plastics. The black piranha (Serrasalmus rhombeus), also known as the white piranha because of its silvery coloring in its youth, is the largest of the Serrascalmus piranhas, growing up to 18 inches long in the Amazon river basin.
Although offered at an entry level price, the CNC Piranha® is every bit as capable as its larger cousin, the CNC Shark®, and it also includes a convenient touch-screen interface! Its compact 12'' x 18'' table makes it perfect for smaller-scale projects.
Interesting Piranhas Facts: Piranhas have silver body covered with red patches that serve as camouflage in muddy waters which they inhabit. Piranha can be inches in length and weight about pounds.