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 ...

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

It usually takes millions of years for new species to evolve, but not for fish in one African lake.

If you're reading this sentence, you might have a fish to thank. Fish were the first animals to evolve jaws. They use their jaws primarily to eat, but also for defense, as tools—such as to burrow or ...

A study published in the Nature journal alters how the evolution of fish has been historically understood. Fossilized fish and other sea creatures have often been pivotal in new scientific discoveries ...

Antarctic notothenioids represent a remarkable evolutionary radiation of fishes that have flourished in the extreme cold of the Southern Ocean. Their unique adaptations — including specialised ...

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 ...