The science behind the robotic tuna. Science Robotics Different parts of the fish model (head, tail frame, tail shell, tail joint, tail fin, tail fin connector) were 3D-printed, then assembled.

Given that they're such naturally proficient swimmers, the physical structure of fish is increasingly ... the scientists built a robotic tuna known as AutoTuna. Based on the tail-stiffness model ...

Usually, several people assess how fatty a tuna is by cutting the tail with a giant saw-like knife, an operation that takes about 60 seconds per fish. But now a machine called Sonofai uses ...

But few can do so with the grace, speed and effortlessness of a real-life fish ... With a tuna-sized machine under their belt, the University of Virginia team plans to scale their tail technology ...