The second picture shows one similar in shape to those sported by modern birds.

二幅图显示羽毛形状与现代鸟类羽毛相似。

There are species where birds rub feathers on each other...

还有些鸟类会互相摩擦羽毛。

Modern feathers consist of thousands of fibres held together by tiny hooks.

现代鸟类羽毛由成千上万束靠细钩聚拢在一起纤维构成。

So, most birds have a feather that is part down.

大多数鸟类都有羽毛。

And for one Australian bird, feathers even help produce an important sound-an alarm.

而对于澳大利亚一种鸟类来说，羽毛甚至可以帮助它们发出一种重音——警报。

It is rather homely withal, having nothing in feather, feature, or form to attract notice.

英云雀隶属家常鸟类，其羽毛、秉性或吸引异类方式并无任何特异。

It also let the scientists know about its final meals - bird feathers and plants.

它还让科学家们了解了它最后一餐——鸟类羽毛和植物。

Indigenous cultures around the world co-opted feathers from local birds, often as displays of social status.

全世界土著文化从当地鸟类身上获取羽毛，通常作为社会地位展示。

Scientists inspected feathers from birds in the Arctic that were about to leave for South America.

科学家们对现居北极即将飞往南美鸟类羽毛进行了研究。

Isn't it a happy coincidence we find feathers beautiful in the same ways that birds do?

我们和鸟类一样都发现羽毛很漂亮，这难道不是一个快乐巧合吗？

The birds harbor tiny parts of plants and lichens in their feathers, setting up similar colonies thousands of miles apart.

鸟类可以用羽毛夹带部分植物和地衣，在几千公里以外类似生态群落中它们便可继续生存。

Other studies have shown that birds with orange and red plumage are similarly less creeped out by orange and red clothing.

其他研究表明，有橙色和红色羽毛鸟类同样也不太会被橙色和红色衬衫吓到。

The researchers found that bigger birds and those that have colorful feathers and often stop at people's birdfeeders were generally more popular.

研究人员发现，体型较大鸟类和那些羽毛颜色鲜艳、经常停在人们喂食处鸟类通常更受欢迎。

When we're collecting the remains from the aircraft, it's usually bird and feather remains.

- 当我们从飞机上收集遗骸时，通常是鸟类和羽毛遗骸。

These pinnate or branched feathers that looked identical to those in living birds.

这些羽状或分枝羽毛，与现存鸟类羽毛完全相同。

So 38 answer is G. 39 feathers from exotic birds.

因此38题答案是G。39题是来自异域鸟类羽毛。

But, birds don't just use feathers to fly.

但是鸟类羽毛除了让它们飞翔之外 还有其他用处。

We can no longer use feathers as a defining characteristic of birds.

我们不能再使用羽毛作为鸟类定义特征。

They are adaptive responses, just as feathers are for birds and fur is for mammals.

它们是适应性反应，就像羽毛之于鸟类，毛发之于哺乳动物。

Adult birds use these feathers to bring water for their chicks from distant oases.

成年鸟类用这些羽毛从遥远绿洲为雏鸟带来水。