One of the rarest fish in the country is slowly swimming back from the brink of extinction after being spotted in a California river for the first time in 10 years. The Southern California steelhead ...

LAS VEGAS (FOX5) — Earthquakes around the world have rattled the Nevada home of the world’s rarest fish deep in a hole in Nye County. As a result, their numbers have plummeted. Now there is an effort ...

With under 40 pupfish left in the wild, they are possibly the rarest fish on the planet. With under 40 pupfish left in the wild, these are possibly the rarest fish on the planet. The Devils Hole ...

If you’ve ever wondered what true dedication looks like in the animal world, you don’t have to look further than the Discus fish. These beautiful, brightly colored fish are famous not only for their ...

A tiny desert fish survives in a sun-scorched cavern on the edge of extinction. Here’s how it’s offering scientists a rare glimpse into the extremes life can endure. If you ever needed proof that ...

Death Valley's Devils Hole pupfish, an inch-long marvel, survives extreme heat and low oxygen in a tiny Nevada cavern. These fish, isolated for millennia, face constant threats from environmental ...