Segmented hinges in the long, thin bones of fish fins are critical to the incredible mechanical properties of fins, and this design could inspire improved underwater propulsion systems, new robotic ...

Add Yahoo as a preferred source to see more of our stories on Google. What was once an idea submitted by a student for a university contest is now a working — or rather, swimming — prototype that ...

A new hand-held accessory that doubles up as a portable fish tank is set to launch in Japan. The bonkers new device - known as a 'Katsugyo bag' allows wearers to show off their expensive market-bought ...