Habitat loss and water pollution in the early 1900s decimated their numbers, but they have been slowly recovering.

The oceans contain numerous hidden treasures, yet few are as rare, fragile, and valuable as the Totoaba fish. Often called “marine cocaine” because of its exceptionally high market price, this ...

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 ...

Joe Busch of Cottage Grove has set a new Minnesota catch-and-release record with a 31.25-inch blue sucker.

In a new study published in Ichthyological Research, an international team of researchers studied the organs that produce light in Vinciguerria mabahiss, a rare species of fish from the Red Sea. This ...

Meet the “ghost fish,” a phantom of the abyss. Here’s how we found the first ever proof of its existence just a few years ago. The deep sea is a part of the world that very few humans get the chance ...

In the waters around Southern Australia, extremely rare animals called handfish can very occasionally be spotted swimming through their ocean home. These unique fish are named for their distinctive ...

A striking 11-foot oarfish on display in the new exhibit Oarfish: Recent Discoveries from the Scripps Institution of Oceanography Collection at the Birch Aquarium. (Photo Courtesy of the Birch ...

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 ...