For salmon in the North Pacific, has the ocean reached its limit?
Scientists and local communities are working to save an iconic but little-known species of fish in India—but first, they have to find it.
In a biodiversity wonderland hardly known outside South Africa, a decades-long effort to restore native fish and their streams is starting to pay off—but new trouble could undermine this fragile comeback.
While the Asian sheepshead wrasse’s allure may be debatable, the fish’s color-changing, sex-changing abilities are hard to disregard.
Can the introduction of a modified invader save the West’s native fish?
Spotted eagle rays’ distinctive markings are turning out to be important identifiers, and may become essential for their protection.
While this highly adapted fish peers out on its prey- and predator-rich surroundings, shapeshifting, pigmented cells enable it to all but disappear into its environment.
A striped marlin slices through a shoal of baitfish, a beautiful reminder of the struggle between predator and prey—as well as the fragility and importance of healthy ecosystems.
On a crowded coral reef, species often make their homes on top of one another (literally), living lives that are tightly intertwined both biologically and evolutionarily.
In an ocean state that now imports half of its seafood, a determined group of activists is restoring the age-old aquaculture practices of Native Hawaiians.
Hundreds of new dams are currently planned for Central American rivers, posing a threat to Indigenous peoples and wildlife alike. Preserving the integrity of these corridors between the mountains and the sea will help them both.
After a case of mistaken identity, scientists face an upstream swim to save a fabled fish.
Before embarking on an icy fishing expedition in the Southern Ocean, king penguins pause to soak up the morning’s first light.
This might be your only chance to meet the best-named fish in the sea.
As the world’s marine ecosystems face ever-increasing threats, is the trend toward huge, remote reserves a promising new development or a worrisome distraction?
With the threats of poaching and deforestation mounting, some start-ups are taking a high-tech approach to the world’s most pressing conservation issues.
Shimmering schools of fish have dazzled scientists for centuries with their synchronized maneuvers. Now, high-speed video is revealing how—and why—they do it.
Millions of tons of fish caught each year go unreported, and that impacts our ability to manage fisheries sustainably—but not in the way you might expect.
In a truth-is-stranger-than-fiction tale, a fish’s lips have become both its most prized asset and its greatest liability.
An endangered fish makes a comeback in the Grand Canyon’s depths—but will the razorback sucker stick around?
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