选择育种可能会培育出一种比狼跑得更快、视力更好的灵缇。
Selective breeding may result in a greyhound running faster and seeing better than a wolf.
然而看得见总是更好的，但失去视力的人们也需要特定的超常能力来做得赶得上拥有视力的人。
Whereas it is always better to be sighted than not, people who have lost vision do have certain extraordinary abilities that can give them advantages over sighted people.
我们在10月9日发表了失聪的小猫视力更好的报道，而现在研究人员则发现盲人的触觉感知比有视力的人更敏锐。
On October 9th, we reported that cats born deaf develop enhanced vision. Now researchers find that blind people perceive touch faster than do those with sight.
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