The ocean contains even stranger and more resilient creatures than anyone imagined-but humans cannot agree on how to conserve them.

海洋生物的奇妙之处和适应能力令任何人都无法想象。但人们对如何保护她们莫衷一是。

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But humans can at least give verbal expression to their loving feelings; so far, animals cannot, although there is the potential for Revelations from language-taught great apes.

但是人类至少可以用口头表达他们的爱情感受；到目前动物们还不能，尽管有类人猿展现了可以学会语言的潜力。

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But while scientists say it's not dangerous to ingest small amounts, they cannot be definitive because there have been no tests on melamine's effects in humans.

尽管科学家说吸入少量三聚氰胺不危险，而由于没有三聚氰胺对人体影响的检测，科学家不能给出准确的定义。

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Current ultraviolet light laser treatments can kill micro-organisms - but cannot be used in humans as they would also damage cells in the body.

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Systems based on machine learning filter out noise in big data or high resolution models by scanning for patterns that humans would like to find but cannot.

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At least some can, for example, recognise themselves in a mirror a trick that humans, great apes and elephants can manage, but most other species cannot.

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