Fishmen

"'I was doin' some fishin' a few days ago, got a nice haul of both fish and junk, until suddenly one 'em fishheads came outta the water, I would have shot him with my ol' shotgun were it not the lil' bugger was pointing at the pile of junk on my boat while offering me some tasty lookin' fish. Let's just say... I came back home with a lotta fish that day!' - Potamic Fisherman"

Overview
The Fishmen are a very strange race of fish-like humanoid creatures that are seen across the shores of America and even in the shores of Mexico. Despite their monstrous appearance, most Fishmen are neutral to humans and other mutants and prefer to leave them alone. There are some Fishmen who actually take the risk of trading with the communities scattered across the sea.

This is not always the case though, and there have been records of large Fishmen raids. It's theorized that Fishmen have their own settlements under the sea, each with their own way of interacting with humans and mutants.

Description
Fishmen, as the name implies, are humanoids with fish-like features such as webbed hands and feet, scaled bodies and fish-like heads.

Biology
Due to their fish-like qualities, they are excellent at swimming and diving under water. It's been noted that Fishmen can walk on the surface for long periods of time, the longest time recorded was a hour.

Fishmen are incredibly intelligent, they understand the concept of bartering and trading and often trade with human and mutant settlements for scavenged gear from the sea or fish. They are also known for using human fishing gear and trash as clothing or to create tools such as weapons or armor.

Despite their incredible intelligence, Fishmen are physically weaker when compared to humans and mutants and can be easily overpowered.