This image taken in 2005 of Bear Glacier highlights the beautiful color of many glacial lakes.
这张摄于2005年的大熊冰川的图片突出体现了很多冰川都具有的美丽色彩。
I have to be a little technical to explain this, but I think if you bear with me, you'll have a better understanding of how fish perceive color and how this impacts the flies we tie and use.
我要更技术性的来解释这一点，但我想，如果你能忍耐我，你就会更了解鱼类是如何感知颜色和它如何影响我们的毛勾扎作和使用。
The body color of the white bear is a protective color, whatever enemies are difficult to find it.
白熊的体色是一种极好的保护色，无论什么敌害，都难以找到它的踪影。
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