![]() Some species use their iridescence to attract mates or give off warning signals, but it’s not clear whether the ghost catfish’s colors serve a purpose, Rutowski said. As the ghost catfish swims, those muscles relax and tighten, sending off a glinting range of colors.Īnd the very see-through skin, which lets in around 90% of outside light, is essential: “We wouldn’t be able to see the colors if the skin of the fish is not so transparent,” Zhao said in an email. Instead, it has tightly packed structures in the muscles that can bend light into rainbow hues, which researchers found after shining different lights and lasers onto its body in the lab. Usually, they have shiny outer surfaces that reflect the light - like a hummingbird’s feathers or a butterfly’s wings, explained Arizona State University biologist Ron Rutowski, who was not involved with the research.īut the ghost catfish has no scales, said senior author Qibin Zhao, a physicist at China’s Shanghai Jiao Tong University, who became fascinated by the fish after seeing it in an aquarium store. Other creatures are also iridescent, creating the shimmering rainbow effect where colors shift as you move. Encouraging the products to fully sink in, this eye patch leaves the skin prepped, hydrated, and importantly, looking oh-so-heavenly. It is reusable, thin and lightweight and holds gels, serums, and creams close to the skin for maximum absorption. Now, scientists have cracked the case of how the fish creates its iridescent glow. The Forever Eye Mask from The Dieux Skin is a TikTok favorite. ![]() The ghost catfish has a see-through body that flickers with rainbow colors when the light hits it. This image provided by Qibin Zhao shows ghost catfish showing iridescence. It’s sold around the world as an aquarium fish. The ghost catfish - sometimes known as the glass catfish - is a small species native to rivers in Thailand, averaging just a few inches long.
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