鸟类难道能读懂地图吗?它们是如何找到路的?鸟类迁徙时的导航能力是遗传的还是后天学会的?关于这个问题,人们已经讨论了50多年,以下是科学家提出并验证过的几种定向方式。视觉路标很多科学家认为迁徙鸟类会跟随着地形特征,如海岸线、河流或者山脉等飞行。大雁、天鹅和鹤类就是采用这种方式进行迁徙的。 Can birds understand the map? How do they find their way? Are birds’ ability to navigate at the time of migration genetic or acquired? People have been discussing this for more than 50 years and the following are presented and validated by scientists Several ways of orientation. Visual signposts Many scientists believe migratory birds follow terrain features such as coastlines, rivers or mountains. Geese, swans and cranes are migratory in this way.