A community of rare fish enthusiasts collects endangered species of freshwater fish from lakes and springs around the world, ...

Fish can change their teeth quickly, which speeds up their evolution. Cichlids in African lakes show the fastest ...

Experienced aquarium owners know they should research different fish species before putting them in their tanks. Some fish are very aggressive and will fight with or eat their tank mates. Meanwhile, ...

Many fish enthusiasts love Black Kuhli Loaches for a variety of reasons. They’re a relatively hardy and peaceful species, so ...

How could they? A star from dozens of lightyears away was to blame for what would soon happen. Cosmic rays from a nearby ...

Thorny skates come in two distinct sizes along the Atlantic Coast of North America, but no one could figure out why. Then their numbers began to plummet, and it became imperative for scientists to ...

African Cichlidae, also known as cichlids, the most diverse and textbook example of species diversification to fill different niches (a phenomenon known as adaptive radiation), were dominated by ...

Nature is fascinating and here’s proof of it. These 10 animals defy norms by giving birth through their mouths ...

Fish, including cichlids, have either "simple" teeth, basically cone-shaped pegs, or "complex" teeth with multiple cusps that can adapt to feed on different prey. Peoples spent two years examining ...

Unlike many other large lakes, its waters never fully mix, creating distinct layers that support its marine life.