《科学》杂志评选出10大科学新闻 The Top 10 ScienceNOWs of 2008
发布: 2008-12-27 14:23 | 作者: webmaster | 来源: 本站原创 | 查看: 243次
8. 雄孔雀羽毛、变色龙变色功能遭挑战
雄孔雀羽毛、变色龙变色功能遭挑战
2008年畅销书《生物学101》提到了两个长久以来被普遍接受的观点：雄孔雀漂亮的羽毛是为了吸引异性；变色龙变色是为了与环境融为一体，达到隐藏自己，蒙蔽敌人的目的。然而，这两种观点似乎都不正确。真正的事实可能是：雌孔雀对羽毛熟视无睹，而变色龙改变体色也不过是为了让自己更显眼而非为了隐藏。
Two long-held beliefs at the core of Biology 101 took a hit this year: Elaborate peacock feathers are designed to attract the opposite sex, and chameleons change color to blend in with their environment. Neither, it seems, is true. Females ignore the feathers, and chameleons change colors to stick out--not to hide.
