2014.04.13【英译中】Reindeer Eyes

maggiewujia (maggiewujia)
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发表于:2014-04-29 03:10 [只看楼主] [划词开启]
Reindeer Eyes
麋鹿的眼睛
Rudolph the reindeer is best known for his brightly colored red nose. For other reindeer, however, the most colorful thing about them is actually their eyes. Researchers have found that depending on the season, the eyes of Arctic reindeer change from gold to blue.
鲁道夫驯鹿最出名的是它那色彩鲜艳的红鼻子。然而,对于其它麋鹿来说色彩最丰富的实际上是他们的眼睛。研究人员发现,北极麋鹿的眼睛能随着季节的变化从金色变成蓝色。
Tapetum Lucidum
反光膜
Like many mammals, Arctic reindeer have a structure in the eye called the tapetum lucidum, TL for short. It sits behind the retina and reflects light back to increase the sensitivity of night vision. The TL is also responsible for reindeer eye color changes.
就像许多动物一样,麋鹿眼睛里有一种结构叫反光膜,简称TL。其位于视网膜的后面,它能反射光线增加夜视的灵敏度。同样的,反光膜也是麋鹿眼睛颜色改变的原因。
During the Arctic summer, when it’s always light outside, reindeer TL is gold — a color that reflects more light back through the retina, better enabling reindeer to see in daylight. (This is why, by the way, many mammals have gold colored eyes.)
在夏季的北极地区,当室外一直处于明亮的时候,麋鹿的反光膜是金色的——金色是光更多的反射回视网膜现成的,这种颜色能让麋鹿在阳光中看得更清楚。(顺便说一下,这也是为什么许多动物都有金色眼睛的原因。)
When Darkness Reigns
当黑暗来临
But when the Arctic winter sets in and darkness reigns, the TL turns blue. The result of this is less light reflecting back out through the retina, making it easier for the animals to see predators in dim conditions.
但是,当处于冬季的北极地区和黑暗区域时,反光膜就会变成蓝色。这是因为很少的光线会反射回视网膜,蓝色的眼睛能让动物们在昏暗的环境中更容易发现捕食者。
The color change may be caused by shifting pressure in reindeer eyes, which stems from constant pupil dilation. When compressed, the TL reflects shorter wavelengths of blue light which are more plentiful during Arctic winters.
麋鹿眼中眼压的变化会引发颜色的改变,这是由于瞳孔不断放大。当眼睛压缩的时候,反光膜会反射波长较短的蓝色波,而冬季的北极地区正含有丰富的蓝色波。
分类: 英语

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