These animals only come out at night.
这些动物只在夜晚出来。
These animals rarely thrive in captivity.
这些动物栏养起来很少会肥壮。
The way these animals are killed is barbaric.
宰杀这些动物的手段很残忍。
Many of these animals are not found anywhere else.
这些动物中有很多是其他地方没有的。
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。
Why were these animals chosen?
为什么被选的是这些动物呢？
These animals consumed large amounts of vegetation.
这些动物吃掉了大量的植被。
These animals ate lots of leaves and lots of grass.
这些动物吃了大量的树叶和草。
These animals could also hurt dogs, cats, and even humans.
这些动物也可能伤害狗、猫，甚至人类。
Most people don't want these animals to be hungry and ill.
大多数人不希望这些动物饥饿和生病。
These animals could at any time break free from their ropes.
这些动物可以在任何时候从捆住他们的绳索中挣脱出来。
These animals are not very common, but are known to many people.
这些动物并不常见，但却为许多人所熟知。
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。
These animals live between the surface of the ocean and a depth of about 3,300 feet.
这些动物生活在海面及海面以下3300英尺的深度之间。
Perhaps the painters thought that their pictures would help them to catch these animals.
也许画家们认为他们的画可以帮助他们捕捉这些动物。
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。
These animals typically live between the surface of the ocean and a depth of about 3,300 feet.
这些动物通常生活在海洋表面和3300英尺左右的深度之间。
We descendants of these animals were left with vestiges of their history, including the hiccup.
我们这些动物的后代同样也遗留下这些痕迹，包括打嗝。
He saw a trainer nearby and asked why these animals just stood there and didn't try to get away.
他看到附近有个驯兽师，就问为什么这些动物只是站在那里，而不试图逃跑。
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 animals shred the prey that fall into the pitcher, and the smaller organisms feed on the debris.
这些动物撕碎掉到水罐里的猎物，而小一些的生物则以残骸为食。
These animals don't have a sophisticated brain to recognize the slight differences between human facial features.
这些动物没有复杂的大脑来识别人类面部特征之间的细微差别。
"Zootopia" is the first time that they have even seen a sloth, but people now are keen to know more about these animals.
《疯狂动物城》是他们第一次看到树懒这种生物，但是人们现在很想知道更多关于这些动物的信息了。
They did studies with monkeys and dolphins that provide evidence that these animals have the ability to feel uncertainty.
他们对猴子和海豚进行了研究，提供证据证明这些动物具有感受不确定性的能力。
They have camels, sheep and other animals. These animals depend on the desert plants for their food and do not need much water.
他们有骆驼、绵羊和其他动物。这些动物以沙漠植物为食，不需要太多的水。
To prepare for this before winter, these animals eat extra food to become fat which gives them the energy they need while they sleep.
为了在入冬前做好准备，这些动物会吃更多的食物来增肥，从而获取睡眠时所需的热量。
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。
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。
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。
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。
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