An aquarium can really add a touch of class to a home or business, particularly if it's got some fancy fish in it – but such fish can be very hard to keep. So, why not just buy a weirdly lifelike ...

The Centre for Research in Robotics and Underwater Technologies (CIRTESU) at the Universitat Jaume I in Castelló has developed an experimental modular, bio-inspired robotic fish prototype (UJIFISH) ...