Piranhas are coated in the silver body with red patches that act as a camouflage in the muddy waters they inhabit. The length and weight of the piranha can be 5.5-17 inches and around 7.7 pounds. Most people believe that piranhas have an insatiable blood appetite, but in fact, they are omnivores (eating animals and plants). Snails, fish, marine animals, plants, seeds, and fruits are usually eaten. If they fall into the sea, they'll feast on mammals and birds, which doesn't happen very much. Piranhas are fitted, like sharks, with unique sensory organs that help them sense blood in the water.
Piranhas (eating their own species) are cannibals. When other sources of meat are not available, they will strike and consume other piranhas. Scary films show piranhas as vicious man-eaters who can eat the human body in a few seconds. While they live and eat in large groups, it takes more time for piranhas to complete large prey.
Piranha classes are known as 'schools.' The school consists of one thousand fish. The main enemies of the piranhas are dolphins, crocodiles, and turtles. Mating takes place in April and May, during the rainy season. Females can lay as many as 5000 eggs.often.
The color of the piranhas ranges from yellow to steel-grey to bluish to partially red to nearly black. Piranhas are usually about 15 to 25 centimeters long (6 to 10 inches), while recorded individuals are up to 41 centimeters long (24 inches). With a very large lower jaw and many razor-sharp teeth, piranhas have a bulldog-like profile. There have replaceable teeth.
When one is cut off, there is a new one forming in its place. In both jaws, all piranhas have a single row of sharp teeth. Their teeth are closely packed and interlocked (through tiny cusps) and used for easy puncture and shear. Piranhas are opportunistic (flesh-eater) carnivores.