We can just call the ones we leave extinct animals.
我们也可以只召集那些快要灭绝的动物嘛。
But in fact we are a long way from being able to clone extinct animals.
但事实上，想要克隆绝种动物，我们还要很长的路程要走。
In South America Darwin found fossils of extinct animals that were similar to modern species...
达尔文在南美洲发现一些类似于现代物种的灭绝动物化石。
Our zoos will most likely fill with animals that are now extinct.
我们的动物园将充满现已绝种的动物。
Many animals are already extinct, or getting close to extinction.
不少动物已经灭绝或滨临灭绝。
If we continue to destroy the countryside, many more animals will become extinct.
我们若继续破坏乡村环境，将会有更多的动物绝种。
Without nature preserve, more animals are likely to become extinct.
如果没有自然保护区，很有可能更多的动物将要灭绝。
Without the education, human beings, just like some animals, would become extinct.
如果没有教育，人就会象很多动物一样灭绝。
Many species of animals have become extinct.
许多动物已经绝迹了。
Most animals went extinct because of evolution.
大部分动物的绝迹是因为进化演变之故。
Something must be done to protect our rare wild animals from becoming extinct.
必须采取措施防止稀有动物灭绝。
If rare animals were extinct, how our life would be influenced?
如果稀有生物都灭绝了，我们的生活将会变得怎样？
If rare animals were extinct, how our life would be influenced?
如果稀有生物都灭绝了，我们的生活将会变得怎样？
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