While often sold when small, Oscar fish can grow large and so they need big aquariums to swim around freely. They can live up to 20 years in spacious, well-filtered tanks.

The new species has been found in two small isolated waterways in Brazil's Atlantic Forest, according to a study.

Oregon Department of Fish and Wildlife fish biologist Jeff Ziller talks about the art of fishing Oregon's mountain lakes.

Søren Skarby's "Scaled Up" series uses a complex process to showcase fish with a level of detail not typically seen.

There are at least 14 shark species in North Carolina, and some of them are on the prowl for food. Here’s what to know about them, plus how to avoid bites..

There are at least 14 shark species in North Carolina, and some of them are on the prowl for food. Here’s what to know about them, plus how to avoid bites..

There are at least 14 shark species in North Carolina, and some of them are on the prowl for food. Here’s what to know about them, plus how to avoid bites..

Synodus autumnus, or the autumn lizardfish (Iroha-eso in Japanese), derives its name from its warm-toned coloration, reminiscent of the time when leaves turn orange, yellow and red in the fall, also ...

How Orcas Work Together to Whip Up a Meal Cooperative hunting techniques provide a glimpse into the culture of killer whales.

An adult bald eagle had crashed through the double-paned window, and alongside the eagle was a large rockfish that the raptor had been carrying. The eagle died and was later collected by a state ...

The little-known species with a “ribbon-like body” is believed by some cultures to be a harbinger of destructive events like ...