MIT/WHOI Joint Program student Kelly Rakow Sutherland captured this image of a box jellyfish (Carybdea sp.) during a night scuba dive off the Pacific coast of Panama at the Liquid Jungle Lab. Box jellyfish, also known as sea wasps, are predatory hunters that can deliver potent stings to swimmers. Less appreciated is that box jellies posses image-forming eyes that allow them to distinguish between light and shadow.
(Photo by Kelly Rakow Sutherland, Woods Hole Oceanographic Institution)