蝙蝠并不是唯一一种现在面临这一难题的生物。
Bats are not the only creatures to face this difficulty today.
原则上来说，生物系统的衰老和死亡都不是必然的。
It is not, in principle, necessary for a biological system to age and die.
鲸鱼不是河马的后代，而是来自古老的类似狼的生物。
Whales are descended not from hippos but from that distant wolf-like creatures.
业界代表们申明他们只承诺维持森林的规模而不是其生物多样性。
Industry representatives made it clear that their commitment was only to maintain the extent of forests, not their biodiversity.
生物学对体重影响极大——发胖并不是个人的错。
Body weight is strongly influenced by biology—it is not an individual's fault if they develop obesity.
这表明细菌的化学合成并不是这些生物的充足营养来源。
This suggests that bacterial chemosynthesis is not a sufficient source of nutrition for these creatures.
英国科学家斯蒂芬·霍金担心，我们发现的任何外星生命更可能是电影《铁血战士》而不是《ET外星人》里的生物。
British scientist Stephen Hawking is worried that any extraterrestrial life we find is likely to be a creature out of the movie Predator, not ET.
世界上大多数的海洋沉积物不是含有浮游生物就是含有大量的蕨类孢子，但它们并不是同时存在于同一层中。
Most marine deposits from around the world contain either plankton or a lot of fern spores but not both together in the same layer.
地球在基础的生物系统方面的状况并不是很乐观。
Looking at the basic biological systems, the world is not doing very well.
现在，大多数糖尿病患者服用的是人类制造的胰岛素，不是在人体内制造的，而是在生产设备中生长的微生物中制造的。
Now, most diabetics take human insulin made, not made in humans, but made in micro-organisms that are growing in a manufacturing facility.
因为如果我们不是（最具有创造力的生物），我们将无法在未来的生态系统中提供多少价值，这可能会使我们存在的基础受到质疑。
Because if we aren't, we won't be providing much value in future ecosystems, and that may put in question the foundation for our existence.
这并不是说生物钟的周期是固定不变的。
This is not to suggest that the period of this biological clock is immutably fixed.
尽管同样的法则也适用于生物体，但是在相同的方式下，这一法则的作用结果并不是无法改变。
Although the same law holds for a living organism, the result of this law is not inexorable in the same way.
这些生物不是自然界的一部分。
但这并不是说我们是没有巨大潜力的生物。
But this is not to say that we are not creatures of tremendous potential.
人并不是唯一说谎的生物。
但是普特斯博士强调，进化生物学并不是注定的。
But Dr Puts emphasises that evolutionary biology is not destiny.
现在一项新的研究表明，乙醇甚至不是生物燃料中最好的绿化方法。
Now a new study makes the case that ethanol isn't even the greenest way to use biomass as a fuel.
但决定这些狼命运的就是这些州的政客们，而不是联邦的生物学家。
Yet it is state politicians, not federal biologists, who now control the fate of wolves.
生物学，总体来说，自然学科不是我的理论强项。
Biology - and science in general - was not my academic strong suit.
因此为了摆脱石油的依赖，生物燃料似乎并不是最佳的方案。
So it seems that biofuels might not be the best solution for weaning the world off oil.
这个结构非常有趣，它不是生物，也不是一种单一的科学。
And this structure is interesting, it's not biology, it's not a single science.
最重要的是，他们得到的诊断将基于一种客观的‘生物指标’，而不是简单地基于面谈后临床医生形成的个人意见。
"Most importantly, their diagnosis will be based on an objective" biomarker "and not simply on the opinion of a clinician, which is formed after an interview."
或许你现在所经历的一切都不是真实的，而是某种邪恶生物制造出的幻觉。
Maybe everything you're now experiencing is not real, but rather is the product of some other, perhaps malevolent, creature.
但是，也许病毒的发现并不是此次探险中最令人惊讶的微生物发现。
But the virus finding was perhaps not the expedition's most surprising microbial discovery.
还有像团藻属类样子的东西，它们是小小的挤作一团的球状生物，而不是像书上所称的微生物那样各自分开。
There were Volvox lookalikes, round balls of little creatures fused together to make a sphere of life rather than a separated quantity of what books like to call animalcules.
还有像团藻属类样子的东西，它们是小小的挤作一团的球状生物，而不是像书上所称的微生物那样各自分开。
There were Volvox lookalikes, round balls of little creatures fused together to make a sphere of life rather than a separated quantity of what books like to call animalcules.
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