Fish, like most animals, have a pretty good idea of which other animals they’re cool with, and which animals they’re not. Very few animals are cool with humans, and fish are no exception—maybe they’re afraid, maybe they’re curious, and maybe they’ll pretend to ignore you until you get too close, but in any of these cases, your presence is affecting their behavior.
We’ve seen many clever examples of animal behavior researchers using robots to study their subjects up close with minimal disruption, and in a paper published in Science Robotics today, roboticists at MIT’s Computer Science and Artificial Intelligence Laboratory describe a new kind of soft robotic spy fish that can more or less blend right in with everything else living on a coral reef.
Source: Spectrum IEEE