An extremely weird fish with human-like teeth nicknamed “the nutcracker” was caught outside its native habitat in South American waters.
Father and son, Ron and Frank Rossi, were fishing at New Jersey lake when they caught a fish they thought was a piranha. On closer inspection they realised it was, in fact, a very rare omnivorous fresh-water fish called the pacu.Normally found in the Amazon, it is closely related to the piranha and an reach up to 0.9 m and 25 kg. While they are not aggressive carnivores like the piranha, their crushing jaw system, used primarily for eating seeds and nuts, can be hazardous.
Pacu are commonly sold as “Vegetarian Piranhas” to home aquarium owners, who when they got tired of their pets release them into wild waterways. If a large population of pacu enters an eco-system to which it isn’t native, the fish can have a very adverse effect on local fauna
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