Beyond light perception
One recurring issue in the quest to create reliable perception systems for robots has been functioning in inclement weather and other challenging environments. For instance, in dense smoke and fog, conventional light-based vision sensors like cameras or LiDAR (Light Detection and Ranging) are ineffective.
According to researchers, nature has demonstrated, however, that vision need not be limited by the restrictions of light; numerous animals have developed methods of perceiving their surroundings independently of light. Sharks hunt by detecting electrical fields from the motions of their prey, whereas bats use the echoes of sound waves to navigate.