a very sophisticated way to see through this kind of cloud of bubbles and particles we've adapted hullboto a tool for managing sea urchins they've called it cullbot and it can detect and control it's been trialled by researchers from the university of new south wales and the sydney institute are degraded or declining. we're about to count the urchins that we see in 10m bands. we place it down and we take photos along the transit line as well. it can stay down for as long as we want it. we can show the funding bodies, for example, orjust and after we intervene. so what do you think, adriana? it is excellent. you can see the barren area really well. you can see the sea urchins and you can see how, area of the seafloor... yes... instead of sending divers down for days at a time in shark—infested waters, adriana thinks the same job could be done with the bot in only a couple of hours. any more, it's about recovering what we have lost because there you know, we'd love to solve climate change, we'd love and on a much bigger scale, the kind of scale we need of cleaning up our mess. to determine

we've adapted hullbot into a tool for managing sea urchins which are in overabundance and threatening kelp on lots of coastlines around the world. they've called it cullbot and it can detect and control the pests with a drill attachment... ..in a special mode we call urchin destroy mode. it's been trialled by researchers from the university of new south wales and the sydney institute of marine science as part of the restoration efforts. so seagrass meadows and kelp forests are super—important habitats, that they provide food and home and shelter for hundreds of other species. it's what we call a foundation species. globally, we've lost about a third of the world's seagrasses, and about 50% of the world's kelp forests are degraded or declining. up until now, they've used some very manual tools. we're about to count the urchins that we see in 10m bands. and then we go back along the line again and then we can take that data and go back and review it all back in the office. section of our study habitat. the beauty about a robot is that it can go very deep, it can stay down for as long as