有一双翅膀的企鹅是百分之百的鸟类,但企鹅为什么不能飞呢?这一直是个令人费解的谜团。最近,苏格兰亚伯丁大学生物学家史毕克曼的一篇研究报告,为我们揭开了谜底。史毕克曼以企鹅的近亲——海鸠为研究对象,在海鸠身上安装追踪器,分析它们飞行消耗的能量。结果显示,海鸠轻轻松松就能潜入水中,而飞行却让它们元气大伤。史毕克曼发现:飞行消耗 Penguins with a pair of wings are one hundred percent birds, but why can not penguins fly? This has always been a puzzling mystery. A recent study by Schubertman, a biologist at the University of Aberdeen, Scotland, opened the door for us. Schweitzer to penguin’s close relative - sea turtle as the research object, the sea dove who installed the tracker, analyze their energy consumption of flight. The results show that the sea dove can easily dive into the water, leaving them flying fatal injuries. Schickman found: flight consumption