Arctic fox,only seasonal white

来源: 移花接木 于 2021-01-14 05:09:01 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (11912 bytes)

summer time, shed to black, born totally black. Polar bear fur is not even white, translucent, looks white on snow,  could show different color under different lighting.

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