Meanwhile, without scorning these theories, the Nautilus's crew captured half a dozen manatees.

然而，尽管明了这些道理，“鹦鹉螺号”船上的人还是捕捉了6只海牛。

So far, the effort has provided the manatees with more than 25 tons of lettuce.

到目前为止，这项努力已经为海牛提供了超过25吨生菜。

Manatees fart to maintain the right buoyancy in water.

海牛放屁是为了在水中保持适当的浮力。

The environmental changes could threaten native animals including manatees and capybaras.

该环境变化可能威胁到包括海牛和水豚在内的本土动物。

During the coldest spells, more than 300 manatees can gather here.

在最冷的一段时间里，300多只海牛都聚集在这里。

The manatees let themselves be struck down without offering any resistance.

因为这些海牛面对捕捉丝毫不做反抗。

The manatee, named Naboo, needed medical treatment after a boat hit her.

这只名叫纳布的海牛曾遭一艘船撞击，亟须进行医疗救治。

Whether or not there's a universal manatee language remains to be seen.

是否存在一种通用的海牛语言还有待观察。

I hope you enjoyed learning about manatees today.

希望你们喜欢今天关于海牛的介绍。

Because of these efforts, some manatee populations are beginning to recover!

因为这些努力，海牛的数量开始恢复了！