1·We are seeing some of the early migratory pressures, the early signs which are not caused by climate change but are exacerbated by it, and that is something we are starting to see.
我们看到了一些早期迁移的压力，这些信号并非由气候变化导致，却因之恶化。这是我们开始看到的东西。
2·The livestock on the green side was managed in a way designed to mimic the great migratory herds of Africa.
在草木葱翠的一边，人们模仿非洲草原上动物的迁移的模式对牲口进行管理。
3·Its population was decimated in the past century by commercialfishing and dams that sealed off its migratory spawning routes.
在上个世纪，由于商业捕鱼的原因，再加上人类密封水坝堵住了鲟鱼的迁移产卵路线。
4·They discovered three migratory routes - including one 4,699 mile journey straight across the Atlantic from Gabon to the coastal waters off southern Brazil and Uruguay that took 150 days.
它们发现了三个迁移途径——其中的一种是一个长达4,699英里的直线横跨大西洋之旅，这个旅程从加蓬到巴西南部的沿海水域和乌拉圭，历时150天。
5·After tumor cell destruction, they became actively migratory, hunting for more tumor cells.
在破坏肿瘤细胞后，它们又积极迁移，捕获更多的肿瘤细胞。
1·He noticed that as they fluttered around in the cage, they often launched themselves in the direction of their normal migratory route.
他注意到，当它们在笼子里到处飞的时候，通常会朝着常规的迁徙路线的方向。
2·The differences in feeding preferences lead, in turn, to differences in migratory habits.
摄食偏好的差异，又导致了迁徙习惯的不同。
3·As with other migratory birds that fly long distances, it's unclear how great snipes can apparently fly for such long periods with little or no sleep.
和其它迁徙鸟类一样，沙锥鸟需要飞行很长的距离，但是它们如何在如此长距离的飞行中不睡觉或者只睡很少的觉，原因尚不明确。
4·Migratory birds that pass through the Arctic have decreased an average of 6 percent, although that number is skewed by a "dramatic increase" in some populations of migratory geese.
经过北极地区的候鸟数量平均下降了6%，尽管“急剧增加”的某些迁徙大雁种群使这个数据有所偏差。
5·Swans on their autumnal migratory flight—the celestial flutter of wings, the silver arrow of a flock splitting the sky—evoke poetic melancholy. Shadows lengthen. Days shorten. Another year closes in.
在秋天的迁徙飞行中，天鹅们化身为长着翅膀的飞仙，似银箭一般刺破蓝天，此情此景不免会勾起诗意愁绪来：光阴渐长，时日变短，又是一年将来到。