Tallinn University of Technology

Marine aquaculture pens have to be regularly checked for holes, plus the fish need to be inspected for parasites. And although the job is typically performed by human divers, it turns out that a robotic sea turtle may be a better choice for the task.

A Prince Rupert's drop looks like a glass tadpole, but it's so strong it can take a hammer hit without breaking, but break its tail with finger pressure and the drop explodes into powder. The reason for has mystified scientists for 400 years, but researchers finally have an answer.

When was the last time you heard about a sea turtle getting stuck in a shipwreck? Never, that's when. That's why the ARROWS project has created U-CAT – a prototype robotic sunken-ship-exploring sea turtle.

Scientists have created robotic fish with a simulated lateral line, to help them navigate by detecting changes in water pressure.