A woman shared a video of her Betta fish's incredible transformation after being moved from a small shop tank to a proper ...

Deciding on décor for the tank was one of my child’s favourite tasks. But there were many considerations—sharp plastic can ...

Ciguatera—a toxin that accumulates in reef fish—is a common cause of seafood poisoning. Learn which fish are safest to order ...

Mudskippers break the rules of fish biology by breathing through their skin, walking on their fins and thriving on land where ...

Mushrooms that appear identical turn out to be different species, correcting decades of errors in biodiversity records.

The U.S. Interior Department announced Wednesday it has removed the Apache trout — Arizona’s official state fish — from the list of endangered and threatened species. The delisting shows the federal ...

Long before whales dominated the oceans, Earth’s seas were home to a fish so massive it continues to challenge our ...

A new study led by researchers at the University of Oxford has shown that the shape and orientation of coastlines ...

Academy researchers identified 72 species new to science in 2025, including the newly recognized Galápagos lava heron, a shy deep-sea fish, and a rare sunflower relative found in a U.S. national park.

Arabian cheetah mummies' DNA reveals that the long-lost population could be closely replaced by a cheetah population in ...

Here are all the new fish and bugs you can catch in Animal Crossing: New Horizons in May. We've sorted by bells so you know ...

Marine heat waves have become longer and more frequent along the U.S. West Coast, as elsewhere in the world. But heating ...