萤火虫用它们的光来吸引配偶。
蜗牛为什么要背着它们的房子？
大象会建立长期的友谊，多年后仍然能记住和认出它们的朋友。
Elephants establish long-term friendships, recognizing and remembering their friends years later.
牛顿发现宇宙中任何两个物体都相互吸引，而且这股引力与它们的质量成比例。
Newton discovered that any two objects in the universe attract each other, and that this force is proportional to their mass.
在最初的三十英里里，红土路蜿蜒穿过低地森林，高大的树木整齐地排列在我们的两旁，它们的枝桠在我们头顶上交错成一个树叶拱门。
For the first thirty miles the red earth road wound its way through the lowland forest, the giant trees standing in solid ranks alongside and their branches entwined in an archway of leaves above us.
根据一项新发表的研究，猫似乎能够通过它们的耳朵和与生俱来的对物质世界运作方式的理解来预测隐藏猎物的位置。
According to a newly published study, cats seem to be able to predict the location of hiding prey using both their ears and an inborn understanding of how the physical world works.
它们的身体呈流线型，后肢完全消失，身体上长出了尾片和喷水孔，所有这些特征都无法掩饰它们与陆生哺乳动物之间的亲缘关系。
Their streamlined bodies, the absence of hind legs, and the presence of a fluke and blowhole cannot disguise their affinities with land dwelling mammals.
由世界顶级蚁学家所著的《蚁丘》中部分内容表明：在威尔逊先生身上，蚂蚁不仅找到了它们的达尔文，也找到了它们的荷马。
One part of "Anthill", by the world's leading myrmecologist, demonstrates that in Mr. Wilson, ants have found not only their Darwin but also their Homer.
请尊重动物和它们的生存空间，谢谢配合！
Thank you for treating animals and their living space with respect!
它让鲸鱼终于可以与人类世界分享它们的歌声。
It allowed whales to finally share their songs with the human world.
狗可能拥有对抗癌症的最新工具：它们的鼻子！
Dogs might have the latest tools in the fight against cancer: their noses!
饲养员给大熊猫们喂食喂水，并仔细观察它们的健康状况。
The keepers provided food and water for the pandas and carefully observed their health condition.
宋说：“我们将继续保护这些珍稀动物和它们的生存环境。”
"We will continue to protect these rare animals and their living environment," Song said.
在伦敦，狗狗和它们的主人可以享受一小时的免费巴士之旅。
In London, dogs and their owners can enjoy an hour-long free bus tour.
尽管鸽子的大脑只有人的食指尖那么大，但它们的视觉记忆力却非常惊人。
Despite having a brain no bigger than the tip of your index finger, pigeons have a very impressive visual memory.
我们把法国南部和其他地方的洞穴壁画赞誉为杰作，它们的历史可以追溯到大概2万年前。
We hail as masterpieces the cave paintings in southern France and elsewhere, dating back some 20,000 years.
这群科学家称，植物并不像我们一直以为的那般安静，事实上，它们的声音频率极高，高到我们根本听不到。
The group of scientists said that plants are not as quiet as we had always thought, but in fact their voices are so high-pitched that we just can't hear them.
有的鸟是不会被关住的，因为它们的羽毛太美丽了！
Some birds aren't meant to be caged, that's all. Their feathers are just too bright!
稻苗在微风中摇曳，鸭子们时而把头伸进水中，时而整理着它们的羽毛。
The young shoots of rice are waving in the breeze, and the ducks are in turn thrusting their heads beneath the water and preening their feathers.
很久以前，我丢失了一只猎犬、一匹栗色马和一只斑鸠，至今仍在寻找它们的踪迹。
I long ago lost a hound, a bay horse, and a turtle dove, and am still on their trail.
许多研究显示，狗是社交的催化剂，能帮助它们的主人与他人建立长久的亲密关系。
THERE are plenty of studies which show that dogs act as social catalysts, helping their owners forge intimate, long-term relationships with other people.
许多研究显示，狗是社交的催化剂，能帮助它们的主人与他人建立长久的亲密关系。
THERE are plenty of studies which show that dogs act as social catalysts helping their owners forge intimate long-term relationships with other people.
你知道，有些鸟儿是注定不会被关在牢笼里的，它们的每一片羽毛都闪耀着自由的光辉。
You know some birds are not meant to be caged, their feathers are just too bright.
不过一拿起平板电脑，考顿就会兴奋地指出各种形状、字母、颜色，还能说出它们的名字。
But on the tablet, Colton enthusiastically points to shapes, letters and colors and identifies them by name.
一群群鹤笨拙地飞离水面，当它们的翅膀捕捉到更多空气时，就优雅地形成编队，飞往每天的捕食地。
Each group climbed clumsily off the water, gained elegance as their wings caught more air, turned in formation, and flew out to their daily feeding.
得到公约承认的遍布各地的各类世界遗产虽然仍属提名它们的国家管辖，但被视作全人类的共同遗产。
The diverse and far-flung sites recognized by the convention are considered the legacy of all humankind while still being under the control of the country that nominated them.
学习并练习地图起作用的原理能大大提高你应用它们的实际能力，就像每天练钢琴有助于提高演奏水平一样。
Learning and practising how maps work can greatly increase your practical ability to use them, just as daily practice on the piano makes for more competent playing.
我对海绵极其着迷，因为它们的颜色、形状和大小如此变化多端，而且它们拥有一个近乎奇迹的生命周期。
Sponges hold a particular fascination for me, because they are so varied in colour, shape and size and they have an almost miraculous life cycle.
我对海绵极其着迷，因为它们的颜色、形状和大小如此变化多端，而且它们拥有一个近乎奇迹的生命周期。
Sponges hold a particular fascination for me, because they are so varied in colour, shape and size and they have an almost miraculous life cycle.
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