Humans Got Their Flexible and Sturdy Joints From Fishes, Evidence Found in 400 Million-Year-Old Jawed Fish Evolution has ...

Deep-sea fish adapt to some of the most extreme conditions on Earth. New research analyzing their evolution finds the same ...

While the common ancestor of vertebrates with synovial joints is still a mystery, the oldest specimen with evidence of these ...

Tracing the evolution of deep-sea fishes, the researchers' analysis revealed that the eight lineages of fish species studied entered the deep-sea environment at different times: The earliest ...

A newly discovered golden cave fish in southwestern China is giving scientists an unprecedented look at evolution in action. The fish, known as the Xingren golden-line fish (Sinocyclocheilus ...

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

“The discovery of the 15 million-year-old freshwater fish fossil offers us an unprecedented opportunity to understand ...

Some golden-line fish have lost their scales and eyes as part of adaptations to cave life — there's no point having eyes if it's too dark to see anything. The newfound species, which the ...

For years, scientists felt like the fish they were watching watched them back. A new study suggests they can recognize a diver's outfit.