I think if some animals become extinct, it would be a huge regret for the human race.
我想，若某些动物绝种，是人类非常遗憾的事。
When one or More predator animals become extinct, there is an increase of the animals that they use for food.
当一种或多种食肉动物灭绝了，它们捕食的动物就会增加。
If loss of motor or respiratory and cardiac function precedes loss of consciousness, animals become fearful and experience distress.
如果运动技能或者呼吸技能和心脏的功能在失去知觉之前失去，动物就会开始疼痛和感到悲伤。
Animals become indifferent to their young as soon as their young can look after themselves, but human beings, owing to the length of infancy, find this less easy.
动物对自己的后代的态度是：一旦它们能够自立，就不再关注它们；但是由于人的婴儿时期太长，父母很难停止关注自己的孩子。
Animals become indifferent to their young as soon as their young can look after themselves, but human beings, owing to the length of infancy, find this difficult.
动物的幼崽只要能照顾自己，父母就不会再管。但是，人类因为成长期过长却很难做到这一点。
Animals which behave "frugally" with energy become particularly old, for example, crocodiles and tortoises.
对能量使用表现得很“节俭”的动物变得非常长寿，比如鳄鱼和龟类。
Exploring the metacognitive capacity of animals could become an important criterion in highlighting the similarities and differences between human and animal minds.
探索动物的元认知能力可能成为强调人类和动物思维异同的重要标准。
They provide shelter for many animals, and their trunks and branches can become gardens, hung with green ferns, orchids and bromeliads, coaled with mosses and draped with vines.
它们为许多动物提供了庇护所，它们的树干和树枝可以变成花园，上面挂着绿色的蕨类植物、兰花和凤梨科植物，覆盖着苔藓和藤蔓。
By fossils, we mean traces of prehistoric animals such as bones, which become mineralized, or impressions of bones or organs that are left in stone.
我们所说的化石，指的是史前动物的遗迹，如已矿化的骨头，或留在石头上的骨头或器官的印痕。
At the current rate of decline, many of the rain forest animals could become extinct in less than 10 years.
按照目前的下降速度，许多雨林动物不到十年就会绝种。
We must protect these endangered animals before they become extinct.
在这些濒危动物灭绝之前，我们必须保护它们。
The tours make more tourists become interested in wild animals.
旅游使更多的游客对野生动物感兴趣。
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。
If these great cats become extinct, the smaller animals they prey upon will overpopulate the forests.
如果这些大型猫科动物灭绝了，那么它们捕食的小型动物将会使森林中物种的密度过高。
In other countries such animals may become people's favorite food.
在其他国家，这种动物可能成为人们最喜欢的食物。
If all of us can live peacefully with animals, we believe that our earth will become better.
如果我们所有人都能与动物和平相处，相信我们的地球会变得更好。
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。
The trees become home to new wildlife, such as birds, and provide food for more animals.
这些树木成为新的野生动物如鸟类的家园，并且为更多的动物提供食物。
One day, the cat's-meat-man said to him, "Why don't you stop being a doctor for people and become a doctor for animals instead? I'm sure that you know a lot about animals-more than most vets. You wrote a wonderful book about cats. I'd send all the people with sick dogs or cats to you."
一天，卖供猫食用的肉的商贩对他说：“你为什么不停止为人类看病，转而为动物看病呢？我相信你对动物的了解比大多数兽医还要多。你写了一本关于猫的好书。我会把所有带着生病的猫狗的人都送到你这里来。”
Paper-cuts were used for many purposes, and everything can become the theme of paper-cuts, from people to the things that can be used in everyday life such as birds, flowers, and animals.
剪纸有很多用途，任何东西都可以成为剪纸的主题，从人到日常生活中可以使用的东西，如鸟、花和动物。
We've become completely desensitise to the fact that breeding these deformed, disabled, disease-prone animals is either shocking or abnormal.
繁殖这些变形的、残疾的和容易患有疾病的动物是一件可怕而反常的事情，而我们对这一现实已经完全地麻木了。
When I became vegan a few years ago, I learned some pretty startling things about how the animals we eat become food.
在我成为素食主义者前几年，了解到一些相当震惊的关于动物是如何变成我们的食物的事实。
The rhymes describe children growing up with trees, flowers and grass and animals that have become their best friends.
儿歌讲述了孩子们同树木、鲜花、草地和动物一起成长，并与它们成为最好的朋友；
The modern ways of raising farm animals for food have become one of the worst tragedies and crimes committed against the animal kingdom.
饲养农场动物作为食品的现代方式已成为对动物王国所犯下的最严重悲剧和罪行之一。
You see, many people do not yet realize that animals are not born to become commodities, to be used and misused for profit and experiments.
你看，很多人还没有意识到，动物并不是天生就要成为商品，被利用和滥用来以盈利和实验。
As research techniques become more advanced, the number of animals used in experiments may decrease, but stopping testing on animals altogether is a long way away.
随着研究技术变得更先进，实验中使用的动物数量可能会减少，但完全停止在动物身上实验还有很长的路要走。
To find out how viruses from animals might become even more deadly in people, researchers are on the alert.
为了找出动物传播的病毒如何变得对人类更有致命性，研究者枕戈待旦。
The truth was that polar bears are ferocious wild animals and can become desperate for food in the ice-free summer months.
事实上北极熊是凶猛的野生动物，在无冰的夏季，北极熊会因难以觅食而变得饥不择食。
There is some evidence that humans may also become infected with RVF by ingesting the unpasteurized or uncooked milk of infected animals.
有证据显示，人若摄入未经高温消毒或未煮过的被感染的动物的奶，也可能感染裂谷热。
Humans may also become infected with RVF by ingesting the unpasteurized or uncooked milk or meat of infected animals.
摄入未经高温消毒或未煮过的牛奶或食用受感染动物的肉，都可能使人感染裂谷热。
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