Fish fins aren’t just for swimming. They’re feelers, too. The fins of round gobies can detect textures with a sensitivity similar to that of the pads on monkeys’ fingers, researchers report ...

The mutation the researchers found causes a change in the zebrafish’s pectoral fin bones, which attach to the fish shoulder joint a little like how the human arm attaches to the shoulder.

Paleontologists sought evidence of a transition from the bony spines of fish fins to the complex of fingers and toes in feet and hands. There have been tantalizing finds, including Tiktaalik ...

The discovery that a long, skinny fish can regrow its fin in a matter of weeks suggests that ancient vertebrates had considerable regenerative powers. Two species of bichir from Africa can regrow ...

Researchers from Tohoku University have developed a model that simulates the motion of fish tail fins. The model uncovers the underlying mechanisms behind a commonly observed phenomenon in fish ...

The broad fins would have made for stronger supports for the fish to lean on rather than for all-out swimming. "It was probably using its front fins as supports to be able to look up, kind of ...