Quick Take A 436-million-year-old bony fish fossil has successfully helped researchers better understand vertebrate evolution ...

These days, all fish have teeth. The shapes of their teeth vary according to diet, ranging from the little pegs of goldfish to the formidable, pointed teeth of sharks. But fish evolved from toothless ...

Hidden within fish DNA are powerful genetic twists that may explain one of nature’s biggest mysteries: how new species form so quickly. In Lake Malawi, hundreds of cichlid fish species evolved at ...

While there is a common belief that the evolution of humans can be traced back to fishlike vertebrate ancestors, pinpointing ...

When we think of the fish that inhabit the deep blue sea today, it’s easy to forget that they haven’t always been there. The ...

Scientists have discovered previously unknown microbial communities living in hundreds of wild fish, revealing new insights ...

It's not what you do, it's how readily you do it. Rapid evolutionary change might have more to do with how easily a key innovation can be gained or lost rather than with the innovation itself, ...

Whole skeleton of Dipterus, an extinct lungfish from the middle Devonian period. Specimen (UMMP 16140) from the University of Michigan Museum of Paleontology. ANN ARBOR—If you're reading this sentence ...

Ancient fossils from South China reveal the earliest bony fishes and shed new light on how jaws, teeth, and key vertebrate ...