Seas, oceans, rivers, and other bodies of water on Earth have become increasingly polluted over the past decades, and this is threatening the survival of many aquatic species. This pollution takes a wide range of forms, including the proliferation of so-called micro and nano plastics.
Then how do we get the robots out of the water?
They are made from a biological substrate with metal magnetic components. It means they are highly controllable in water tanks via magnetic fields. They won’t be out in the wild.
Slightly bigger microrobots.