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Deep-sea fishes sport superdark skin

机译:深海鱼体育超达克皮肤

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In the depths of the ocean, it might take more than a little light to illuminate some of the planet's darkest fish. Some deep-sea fishes, including the Pacific blackdragon (Idiacanthus antrostomus) above, have ultrablack skin capable of soaking up almost all light, researchers report online July 16 in Current Biology. The skin may help the animals hide from predators or sneak up on prey, and might inspire new designs for superdark materials used in telescopes or fabric. Little light reaches the deep sea, but bioluminescent creatures can brighten the inky darkness. An analysis of 18 ultrablack deep-sea fish species reveals that they have a layer (black arrow in the electron micrograph image, left) of circular melanosomes just under the skin's top layer. The pigment-containing structures are so tightly packed, the skin can absorb up to 99.95 percent of light. Other dark-colored fish tend to have more gaps between melanosomes. Those spaces lead to more light being reflected and a more visible fish, say Karen Osborn, a marine biologist at the Smithsonian National Museum of Natural History in Washington, D.C., and colleagues.
机译:在海洋的深处,可能需要更多的光线来照亮一些星球最黑暗的鱼。一些深海鱼类,包括太平洋黑石(Idiacanthus Antrostomus)上面的紫外线皮肤能够浸泡几乎所有的光线,研究人员在线在线报告了7月16日当前的生物学。皮肤可以帮助动物从捕食者隐藏或偷偷地掠夺猎物,并可能激发用于望远镜或织物中使用的超级克材料的新设计。小光到达深海,但生物发光的生物可以照亮玄气的黑暗。对18个Ultrablack深海鱼类的分析表明,它们在皮肤顶层下面有一层(电子显微照片图像中的黑色箭头)的圆形黑色素。含颜料的结构如此紧密包装,皮肤可以吸收高达99.95%的光。其他暗色的鱼在黑色素之间往往有更多的间隙。这些空间导致更多的光线被反射和一个更可见的鱼,在华盛顿州华盛顿州华盛顿州史密森尼国家自然历史博物馆和同事的海洋生物学家。

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