As the saying goes, there are plenty more fish in the sea—but climate change is rapidly challenging that notion, with fish ...

Fish are evolving ever smaller in order to survive temperature increases, new research warns. It’s a biological shift that will rob billions of meals from those who rely on fish for protein.

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 ...

Holly has a degree in Medical Biochemistry from the University of Leicester. Her scientific interests include genomics, personalized medicine, and bioethics.View full profile Holly has a degree in ...

A newly discovered golden cave fish in southwestern China is giving scientists an unprecedented look at evolution in action.

Reef fish in different oceans often develop similar color patterns because evolution explores the same set of biological ...

In Lake Washington, the frequency of stickleback fish with “complete” plates, characterized by bony lateral plates covering the entire flank of the body (top), has increased. The study revealed that ...

Scientists discovered some of the oldest bony fish fossils in China. The fossils explain the early history of animals with backbones.

While there is a common belief that the evolution of humans can be traced back to fishlike vertebrate ancestors, pinpointing the origins of bony fish — a key group in this evolution — remains ...