And it’s not harmless at all
There are fish with human teeth in the world.

Pacu is an exotic fish that is closely related to piranhas.
This fish lives only in the waters of the Amazon. Unlike piranhas, pacu feeds on nuts and fruits that fall into the water, algae, sometimes they consume small fish and invertebrates. For this reason, their teeth are not sharp, like piranhas, but flat, like a human.
However, despite its non-aggressiveness, pacu can cause injury to a person due to powerful jaws.

In Papua New Guinea, these fish castrated several fishermen standing in the water, mistaking their genitals for nuts. Pacu can grow up to a meter in length and looks quite unusual.
