An owl is a nocturnal bird, while a sparrow is diunal.

猫头鹰是夜间活动的鸟，而麻雀白天活动。

But the battle rages over nocturnal and Sunday work.

夜间及星期天工作的争论仍然不休。

Owls are generally nocturnal, and most animals that are nocturnal have a really good sense of hearing.

猫头鹰通常是夜间活动的，大多数夜间活动的动物都有很好的听觉。

Now some would " nocturnal" way from the very idea.

现在有些人可能不会为这个想法“转浣身”。

Most bats are nocturnal foraging for insects like mosquitos, beetles, and moths.

大多数蝙蝠都在夜间活动，寻像蚊子、甲虫和飞蛾这样的昆虫。

Humans are generally not nocturnal by nature.

人类通常不是天生的夜行性动物。

Mice are normally nocturnal and, of course, covered by fur.

小鼠一般在夜间活动，当然，其自身皮肤由皮毛所覆盖。

The reason most people haven't heard about them is they're nocturnal.

大多数人没有听说过这种动物的原因是穿山甲是夜行动物。

The animals and their nocturnal chirps are beloved in their native Puerto Rico.

考齐蛙和它们的夜鸣在波多黎各本地非常受欢迎。

You might even hear nocturnal animals begin to call!

你甚至可以听到夜行动物开始嚎叫！

They are also nocturnal, being active mostly at night.

它们也是夜行性的，在晚上更活跃。

In order to avoid predators, many insects are nocturnal.

为了躲避掠食者，很多昆虫是夜行的。

Yeah, there are several different varieties. They're very rare though, and they're nocturnal.

对，有很多种不同的几维鸟。不过几维鸟非常稀有，而且它们是夜行动物。

What was this nocturnal expedition, and why should I go armed?

要在夜间出征是怎么回事？为什么要我带武器去？

Now scientists understand that moths are important nocturnal pollinators.

如今科家已能确定飞蛾种群是十分重要的夜间传粉者。

To capture the lives of animals, and their nocturnal journeys, in color.

捕捉动物们的夜间生活和行动。

Leading are nocturnal safari, Hong Kong British educator and photographer Lawrence Hylton.

领导夜间探险的是来自香港的英国教育家和摄影师Lawrence Hylton。

They can be set up and left overnight to catch nocturnal species.

它们可以放置一夜，捕捉夜间活动的物种。

Piranhas are not nocturnal creatures and are generally sleeping during the night.

食人鱼不是夜间活动的动物，通常在夜间睡觉。

But in school, we learn raccoons are nocturnal. They sleep during the day.

老师说，浣熊只在夜间行动。白天都在睡觉。