激光刺激荧光技术揭示出羽翼丰满的反鸟类雏鸟，支持了早成性筑巢行为。

Foundation for Scientific Advancement, Sierra Vista, Arizona, 85650, United States of America.

Vertebrate Palaeontology Laboratory, Department of Earth Sciences, The University of Hong Kong, Pokfulam, Hong Kong SAR, China.

Sci Rep. 2019 Mar 21;9(1):5006. doi: 10.1038/s41598-019-41423-7.

Laser-Stimulated Fluorescence (LSF) is used to identify fully fledged feathering in the hatchling enantiornithine bird specimen MPCM-LH-26189, supporting precocial nesting behavior in this extinct group. The LSF results include the detection of a long pennaceous wing feather as well as cover feathers around the body. The LSF technique showed improved detection limits over and above synchrotron and UV imaging which had both been performed on this specimen. The findings underscore the value of using a wide range of analytical techniques.

激光激发荧光（LSF）用于鉴定孵化幼鸟标本 MPCM-LH-26189 中完全成熟的羽毛，支持该灭绝类群的早成性筑巢行为。LSF 结果包括检测到长而有羽枝的翼羽以及身体周围的覆盖羽毛。LSF 技术比已经在该标本上进行过的同步辐射和紫外线成像的检测极限都有所提高。这些发现强调了使用广泛的分析技术的价值。