The artists were highly skilled at using, or even enhancing, the natural shape of the cave walls to give depth and perspectives to their drawings, the sense of motion and vitality in these animals.
艺术家们高度熟练地使用，甚至增强了洞穴墙壁的自然形状，使他们的绘画具有深度和透视感，以及这些动物的动感和活力。
The scientists believe that oxidative stress may underlie premature aging in these animals.
科学家认为氧化应激可能是这些动物过早老化的原因。
Interestingly, horses are especially vulnerable to Bornaviruses, and no Bornavirus sequences showed up in these animals.
有趣的是，马是特别容易受博尔纳病毒感染的，但是在这些动物仲却没有发现博尔纳病毒的基因排序。
You would never go back to an ordinary dog. The level of intelligence and social awareness in these animals is staggering.
你不会再去养一只普通的狗，这种动物的智力和社会意识水平非常惊人。
The disease symptoms in these animals are similar in all cases, a slowly progressive degenerative brain disease that makes the brain appear spongy and full of holes.
这些动物的病状都很类似，让脑缓慢退化性的脑病，它使脑变得成海绵状和充满空洞。
Liraglutide stimulates C-cells in rodents, causing an increase in calcitonin and there were few cases of cancer in these animals, but there were none in nonhuman primates nor in any humans.
依拉鲁肽刺激啮齿类动物的C细胞使其降钙素生成增加并有部分实验动物发生肿瘤，但未观察到有人类发生此类严重副作用。
This part of the evolutionary tree is very sensitive to small changes in how we interpret the anatomy and the combination of anatomical features we see in these animals as they are discovered.
进化树上的这一部分对我们如何解释结构特征的分解和组合变得非常敏感，对当它们被发现时我们看待它们结构特征的小小改变变得非常敏感。
Note how these animals sometimes walk with their tails up in the air.
注意观察这些动物有时如何翘起尾巴走路。
They have these huge animals right in the lobby.
他们有这些大型动物在大厅里。
Remember that the ranges of many animal species were different back then, so all these animals actually lived in the region at that time.
记住，当时许多动物物种的活动范围是不同的，所以所有这些动物实际上都生活在那个地区。
Dangerous animals like snakes also like to sleep in these places.
像蛇这样危险的动物也喜欢在这些地方睡觉。
These animals were not as sensitive to climate changes in the Cretaceous period as they are today.
这些动物在白垩纪对气候变化不像今天这样敏感。
These professional animals are probably better at finding their way in the airports than the most frequent of travelers.
这些专业的动物可能比最经常旅行的人更善于在机场认路。
Born and raised in a zoo, these animals would not be able to survive in the wild.
在动物园出生和长大的这些动物无法在野外生存。
Now, in a grassland of Lake Ecosystem, we'd expect to find fossils from a variety of animals, and numerous fossils have been found at least at these particular sites.
现在，在湖泊生态系统的草原上，我们可以预料能找到各种动物的化石，至少在这些特定地点已经发现了大量的化石。
These animals consumed large amounts of vegetation, which reduced plant diversity in the park.
这些动物食用了大量的植被，因此减少了这个公园的植物多样性。
While studying endangered species may provide some insights to scientists, the cost of keeping these animals in existence can not be justified for research purposes alone.
虽然研究濒危物种可能为科学家提供一些领悟，但仅仅为了研究的目的而饲养这些动物的话，其饲养成本是不合理的。
They might document which plants are blossoming or what animals live in there. Through sharing these, other kids can see the differences across the country.
他们也许会记载哪些植物开花了，或者他们地区生活了哪些动物。通过分享这些记载，其他的孩子就会看到全国不同的地方。
One thing he found was that humans didn't necessarily have to kill these animals in great numbers in order to nudge them toward extinction.
据他发现，人类不必大量捕杀这些动物，就可以使它们走向灭绝。
Both animals and plants have different appearances in these various lighting conditions.
动物和植物在不同的光照条件下有不同的外观。
These animals rarely thrive in captivity.
这些动物栏养起来很少会肥壮。
This leads to pressure on local governments to protect these beautiful areas, and can result in the protection of endangered plants and animals.
这就给地方政府带来了保护这些美丽地区的压力，从而保护濒危动植物。
People will also leave these harmful things in their own bodies and may become ill when eating these sea animals.
人们也会把这些有害的东西留在自己体里，可能会在食用这些海洋动物时染病。
Every year, people put their pets in their cars, drive for kilometers, then leave these poor animals at the side of the road.
每年，人们把他们的宠物放在他们的车里，开几公里，然后把这些可怜的动物留在路边。
These animals speak and dress like real people, although they often live in animal homes.
这些动物说话和穿着都像真人，尽管它们经常生活在动物的家里。
This is of special concern because of the important role these animals play in the subsistence diets of Alaska Natives.
这些动物在阿拉斯加土著人赖以生存的饮食结构中扮演重要角色，因此受到特别关注。
You can see the expression on the man's face as he pauses in reverence for these magnificent animals.
你可以看到在停下来向这些了不起的动物致敬时，这个男人脸上的表情。
These animals have been evolving in the Philippine archipelago for millions of years.
这些动物已经在菲律宾群岛上演变进化了百万年了。
As I watched through my binoculars, I reflected that it was strange finally to see these celebrated animals in their natural habitat.
当我用望远镜观察时，我想在它们的自然栖息地，我终于看见了这种著名的动物，有点奇怪的感觉。
As I watched through my binoculars, I reflected that it was strange finally to see these celebrated animals in their natural habitat.
当我用望远镜观察时，我想在它们的自然栖息地，我终于看见了这种著名的动物，有点奇怪的感觉。
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