The Monterey Bay Aquarium Research Institute (MBARI), which uses QNX-controlled autonomous underwater vehicles to perform ocean research, has just posted a video of a fish with a — wait for it — transparent head.
Words fail me. So let's just watch the video:
The thing to remember is that the fish's eyes aren't those front-mounted things that look like eyes, but the bright green things inside the transparent dome. Scientists theorize that the dome serves a purpose: to shield the fish's eyes from the stinging cells of jellyfish. For the full story, check out this article.
Postscript: For a somewhat larger image of the fish, click here.