Birds will fatten themselves with heavy feeding in advance of a long migrational flight.
鸟类在长途迁徙飞行之前，会用大量的食物喂肥自己。
2
Objective To analyses the characteristic appearances of neuronal migrational anomaly on MRI.
目的分析各种神经元移行异常的MRI特征。
3
Peter Richardson, of the Marine Conservation Society, said the study filled in a gap in our knowledge of the loggerhead’s ‘astounding migrational abilities’.