Rare Amazonian fish with human-like teeth caught in New Jersey

This is when fishing gets exciting. Ron and Frank Rossi were out on the water at Swedes Lake in New Jersey over the weekend when they caught a rare Amazonian fish with human-like teeth.

The Rossi's told WPVI, "We scoop this thing up and brought it up. We didn't know what kind of fish it was."

"I've never seen anything like that before in the lake. It was different."

After a quick Internet search, they determined it was a Pacu fish.

Pacu are related to piranha's but fortunately, their chompers aren't as sharp. They are also omnivores, not carnivores. But you still want to steer clear of them.

Their wide teeth and strong jaw muscles allow them to crack open tree nuts and other tough aquatic foods. Somewhat terrifyingly, however, the fish have been known to mistake human testicles for tree nuts.

How an exotic fish from the Amazon ended up in a New Jersey pond isn't easily explained.

Pacus can weigh up to 55 pounds and grow to be 3 or 4 feet in length and officials say it's likely that people who buy them from pet stores dumped the fish there after they became too big for the fish tank.

Did you celebrate National Go Fishing Day last week? See how these people did: