It's long been a staple on seafood menus and in frozen fish fillets at the grocery store. But dig a little deeper and orange roughy (also known as deep sea perch) is actually one of the most ...

Speckled sea trout, also known as spotted sea trout, are a popular inshore gamefish species found across the eastern and southern coasts. While they resemble their freshwater cousins in looks, these ...

Betta fish might be small, but they still require a sizable amount of care. If you’re going to keep this type of fish, you must learn how to clean a betta fish tank. Even with a quality aquarium ...

Keeping your fish tank clean is one of the most important things you can do for the health and happiness of your aquatic pets. A clean tank supports a stable environment, prevents waste buildup, and ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Some types of sea ...

Mesopelagic fish, long overlooked in ocean chemistry, are now proven to excrete carbonate minerals much like their shallow-water counterparts—despite living in dark, high-pressure depths. Using the ...