Pacu fish have teeth that look exactly like people’s teeth
It is no secret that some animals evolved after being so in contact with humans. However, these evolutionary traits can get pretty weird. That is the case with the Pacu. Reddit user SunnySaigon has commented that these South American fish have teeth that are eerily similar to those of humans.
Pacu is a South American freshwater fish with square and straight teeth. That is why they so closely resemble those of humans. These fishes use their teeth mainly to crush nuts and fruits that fall on the water or that humans feed them. Still, they also eat other fish and invertebrates sometimes.