The occurrence of biofluorescence across Mammalia is an area of active study. We examined three specimens of the platypus ( Ornithorhynchus anatinus ) from Tasmania and New South Wales, Australia, housed in the Field Museum of Natural History (Chicago, Illinois, USA) and the University of Nebraska State Museum (Lincoln, Nebraska, USA) under visible light and ultraviolet (UV) light. The pelage of the animals appeared uniformly brown under visible light and green or cyan under UV light, due to fluoresced wavelengths that peaked around 500 nm. Our observations are the first report of biofluorescence in a monotreme mammal.

中文翻译：

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鸭嘴兽（Ornithorhynchus anatinus）中的生物荧光

整个哺乳动物体内生物荧光的发生是一个活跃的研究领域。我们检查了来自塔斯马尼亚州和澳大利亚新南威尔士州的鸭嘴兽（Ornithorhynchus anatinus）的三个标本，这些标本存放在自然史博物馆（美国伊利诺伊州芝加哥）和内布拉斯加州大学州立博物馆（美国内布拉斯加州林肯）下。可见光和紫外线（UV）。由于可见光的荧光峰值在500 nm左右，因此动物的皮骨在可见光下均匀地呈现褐色，而在紫外光下则呈绿色或青色。我们的观察结果是单端哺乳动物中生物荧光的首次报道。