猫头鹰洗澡前后的对比:猫头鹰之所以能够在飞翔时保持安静,除了得益于它翅膀特殊的羽毛构造:细密锯齿状外缘,还有另一个原因:猫头鹰放弃了羽毛上的脂肪膜。这使得它们的羽毛不能防水,但相对的更加蓬松保暖,且在飞行时能够安静不发出声音。新西兰中央能源信托基金会(Central Energy Trust Wildbase Recovery)救助了一只被水打湿的斑布克鹰鸮,工作人员拍下了猫头鹰洗澡前后的照片。
https://weibo.com/3911558393/KjyBxa0Ro
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