耳朵主要的用途是能够侦听到甚至是最微弱的声响，比如食肉动物的接近，当然也包括猎物活体的所在位置。
Mainly, large ears can detect even the smallest of sounds such as approaching predators and of course, the presence of live food.
从那种意义上来说，比起其他爬行动物的大脑它们更接近哺乳动物的大脑。
In that sense, they are closer to mammals' brains than other reptiles' brains.
最终，科学家们通过一些非常令人振奋的发现，复原了最接近其原貌的鲸类动物的样子。
Very exciting discoveries have finally allowed scientists to reconstruct the most likely origins of cetaceans.
回顾这一天，你会发现骑马观赏野生动物将是你最接近于回应野性呼唤的一次体验，这是难以否认的。
Looking back on your day, you will find it hard to deny that a horseback Safari is as close as you will ever come to answering the call of the wild.
威斯苏森教授质问道，“在我们克隆动物的研究还没有接近成功时，为什么还想到要克隆人呢？ ”？
"Why would you ever want to clone humans," Westhusin asks, "when were not even close to getting it worked out in animals yet?"
研究表明，给一只在做实验手术的动物服用止痛片，使其体验更接近人类，这样能够改善结果。
Research has shown that giving pain-relieving drugs to animals that are undergoing experimental surgery may enhance the results, by making the animal's experience more like a person's.
作为一项规则，摄制小组尽量避免过于接近所拍摄的动物。
The team try not to get too close to the animals they are filming as a rule.
他们发现，扁盘动物是离一切动物始祖位置最接近的活着的生物。
They have found that the placozoans are the closest living thing to the ancestor of all animals.
之后，他要抚养卵化的小鸟，积极地保护它们，并攻击任何过于接近的动物——甚至包括雌性美洲鸵。
He then rears the hatchlings, defending them aggressively and charging any animal-even a female rhea-that approaches too closely.
大多数鸟类都有保护他们幼仔接近食肉动物的天性，但是他们最终会因为来袭者的强大或者危险去阻止而放弃。
Many birds have an instinct to protect their young when approached by a predator, but they will eventually give up if the predator is too strong or dangerous to deter.
不同于多数只能观赏动物的狩猎旅游者，“地球观察团”在游客为了研究而抓住野生斑马并给它们上卷标时，给予他们一个接近这些动物的亲密机会。
Unlike most safari-goers who only get to look at the animals, Earthwatch gives travelers the chance to get up close and personal as they catch and tag wild zebras for research.
就在同时，其他科学家们开始通过检验现代爬行动物的鳞片来试图阐明羽毛的起源，因为爬行动物与鸟类之间的亲缘关系最为接近。
In the meantime, other scientists sought to illuminate the origin of feathers by examining the scales of modern reptiles, the closest living relatives of birds. Both scales and feathers are flat.
这些部分的特征让古生物学家得以作出这样的结论：这种动物在哺乳动物谱系中，与有胎盘类的关系较与有袋类(如袋鼠)的关系更接近。
These features led the paleontologists to conclude that the animal was closer to living placentals on the mammalian family tree than to pouched marsupials, such as kangaroos.
这次试验中使用的动物是老鼠，这种动物和以前用于试验的线虫和果蝇比起来已经很接近人类了。
But that is much closer to humans than the nematode worms and fruit flies which were the subjects of previous successful experiments on drug-induced life extension.
圣方济——通常认为这位圣人的灵魂最接近基督——曾把动物和植物比作自己的兄弟和姐妹。
St Francis, often considered as the saint who was closest in spirit to Christ, spoke of the other animals and plants as his brothers and sisters.
熊整个身体器官、神经系统是高等哺乳动物，和我们人的生理非常接近。
They are higher mammals featured with advance body, organs and nervous systems, very physiologically close to human beings.
一个模式，‘把人类祖先设想为拳步而行的陆栖动物，其动作非常接近我们的近亲非洲大猩猩，’该报告说。
One model 'envisions the pre-human ancestor as a terrestrial knuckle-walker, a behavior frequently used by our closest living relatives, the African apes,' the report said.
它们也是灵长类动物中与人类最为接近的亲戚。
就在同时，其他科学家们开始通过检验现代爬行动物的鳞片来试图阐明羽毛的起源，因为爬行动物与鸟类之间的亲缘关系最为接近。
In the meantime, other scientists sought to illuminate the origin of feathers by examining the scales of modern reptiles, the closest living relatives of birds.
苏格兰柯库布里的加洛威野生动物保护公园内，一只刚刚出生4个星期的双胞胎粉红小熊猫接近摄像机镜头，正眨巴、眨巴大眼睛看这个世界呢！
One of the two 4-week-old twin red pandas gets close to the camera at Galloway Wildlife Conservation Park near Kirkcudbright in Scotland.
5亿年前，二叠纪(the Permianperiod)接近尾声，这时大约80%至96%的海洋生物和接近70%的陆地动物消失，其中的原因至今不明。
At the end of the Permian period 250m years ago, between 80% and 96% of all living Marine species were extinguished, along with 70% of land animals. The cause is unclear.
研究人员认为，和来自美国其余48个州的发现比起来，这个地点的石头工艺品，房屋结构和动物残骸和西伯利亚的Ushki湖的发现更接近。
Researchers believe the stone artefacts, house structure and animal remains more closely resemble items found at Siberia's Ushki Lake than anything from America's lower 48 states.
在里面我们看见各种的动物，它们生活的环境都建造得尽可能接近它们的原产地。
In it we saw all kinds of animals in dwellings that were as close as possible to their original habitats.
他们小心翼翼地接近这只凶猛的动物。
“狗是最接近人类感情的动物。公开庆祝杀死他们，吃他们的肉是绝对不行的。”朴说。
"Canines are the animals emotionally closest to humans. You can't just publicly celebrate killing and eating them, " Park said.
在自然的或接近自然的环境里观看野生动物是一种很大的乐趣，这样的旅游业能给国家增加收入。
There is great pleasure in watching wildlife in natural or near natural environments, and tourism can add to the income of countries.
大部分动物看到自己的影像时通常都会做出攻击行为。但有趣的是，只有与人类比较接近的动物能够辨别出自己的影像。
Most animals respond to see their own reflection with aggressive behavior, but interestingly, only a few animals like humans are able to recognize their own reflection.
据研究人员称，人类是仅有的易于患上特定大脑疾病例如阿尔茨海默病的动物，这种疾病在85岁以上的美国人里具有接近50%的发病率。
As far as researchers can tell, humans are the only animals subject to specific brain maladies such as Alzheimer's disease, which in the United States afflicts nearly 50% of people over the age of 85.
结论小型猪的混合唾液流率与人接近，是唾液疾病研究中较为理想的大型实验动物模型。
It is considered that minipig is a good large laboratory animal model for investigation of oral saliva gland diseases.
结论小型猪的混合唾液流率与人接近，是唾液疾病研究中较为理想的大型实验动物模型。
It is considered that minipig is a good large laboratory animal model for investigation of oral saliva gland diseases.
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