What the Heck Is This?

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I'd be surprised if anyone can guess this without scrolling down to see the full version, and even then it'd be tough.

Hints? If you are a biologist, you'll have a good shot at it. If you're a marine biologist, you have no excuse for not knowing, I guess.

The image shows light refracting off a comb jelly (don't call it a jellyfish). See the whole thing below.

Comb jellies have connective tissues and a nervous system, and though they have tentacles and are all squishy, they are not really true jellyfish. In 2008, scientists discovered evidence indicating comb jellies were the first animals (sponges had previously laid claim to that title).

Comb jellies are one of many fascinating species lurking in the enigmatic deep sea, as discussed in this new feature article about the vast and deep mysteries of the ocean over on our sister site, OurAmazingPlanet.

Got a strange or interesting photo related to science, nature or technology? What the Heck, send it to me, and maybe I'll use it. Or follow me on Twitter, or Facebook.

Light refracts off a comb jelly, a species found in the Arctic, producing stripes of rainbow color. Polar waters are home to many species seen nowhere else on Earth. One of the two tentacles with which it feeds is deployed while the other is retracted. (Image credit: Kevin Raskoff, MBARI, NOAA/OER)
Robert Roy Britt
Robert Roy Britt

Robert is an independent health and science journalist and writer based in Phoenix, Arizona. He is a former editor-in-chief of Live Science with over 20 years of experience as a reporter and editor. He has worked on websites such as Space.com and Tom's Guide, and is a contributor on Medium, covering how we age and how to optimize the mind and body through time. He has a journalism degree from Humboldt State University in California.